Concept explainers
(a).
Interpretation:
The chemical symbol and
Concept Introduction:
Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the
(a).
Answer to Problem 85AP
The chemical symbol of astatine is At and its atomic number is 85.
Explanation of Solution
There are in total 118 elements known to exist in nature shown in the periodic table. Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized. The number of protons present in the nucleus of an atom signifies the atomic number of the atom, the atomic number is unique for every element.
Thus, chemical symbol of astatine is At and its atomic number is 85.
(b).
Interpretation:
The chemical symbol and atomic number of xenon should be determined.
Concept Introduction:
Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized.
(b).
Answer to Problem 85AP
The chemical symbol of xenon is Xe and its atomic number is 54.
Explanation of Solution
There are in total 118 elements known to exist in nature shown in the periodic table. Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized. The number of protons present in the nucleus of an atom signifies the atomic number of the atom, the atomic number is unique for every element.
Thus, chemical symbol of xenon is Xe and its atomic number is 54.
(c).
Interpretation:
The chemical symbol and atomic number of radium should be determined.
Concept Introduction:
Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized.
(c).
Answer to Problem 85AP
The chemical symbol of radium is Ra and its atomic number is 88.
Explanation of Solution
There are in total 118 elements known to exist in nature shown in the periodic table. Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized. The number of protons present in the nucleus of an atom signifies the atomic number of the atom, the atomic number is unique for every element.
Thus, chemical symbol of radium is Ra and its atomic number is 88.
Interpretation:
The chemical symbol and atomic number of strontium should be determined.
Concept Introduction:
Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized.
Answer to Problem 85AP
The chemical symbol of strontium is Sr and its atomic number is 38.
Explanation of Solution
There are in total 118 elements known to exist in nature shown in the periodic table. Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized. The number of protons present in the nucleus of an atom signifies the atomic number of the atom, the atomic number is unique for every element.
Thus, chemical symbol of strontium is Sr and its atomic number is 38.
e
Interpretation:
The chemical symbol and atomic number of lead should be determined.
Concept Introduction:
Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized.
e
Answer to Problem 85AP
The chemical symbol of lead is Pb and its atomic number is 8.
Explanation of Solution
There are in total 118 elements known to exist in nature shown in the periodic table. Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized. The number of protons present in the nucleus of an atom signifies the atomic number of the atom, the atomic number is unique for every element.
Thus, chemical symbol of lead is Pb (from the Latin word plumbum) and its atomic number is 82.
f
Interpretation:
The chemical symbol and atomic number of selenium should be determined.
Concept Introduction:
Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized.
f
Answer to Problem 85AP
The chemical symbol of selenium is Se and its atomic number is 34.
Explanation of Solution
There are in total 118 elements known to exist in nature shown in the periodic table. Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized. The number of protons present in the nucleus of an atom signifies the atomic number of the atom, the atomic number is unique for every element.
Thus, chemical symbol of selenium is Se and its atomic number is 34.
g
Interpretation:
The chemical symbol and atomic number of argon should be determined.
Concept Introduction:
Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized.
g
Answer to Problem 85AP
The chemical symbol of argon is Ar and its atomic number is 18.
Explanation of Solution
There are in total 118 elements known to exist in nature shown in the periodic table. Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized. The number of protons present in the nucleus of an atom signifies the atomic number of the atom, the atomic number is unique for every element.
Thus, chemical symbol of argon is Ar and its atomic number is 18.
h
Interpretation:
The chemical symbol and atomic number of cesium should be determined.
Concept Introduction:
Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized.
h
Answer to Problem 85AP
The chemical symbol of cesium is Cs and its atomic number is 55.
Explanation of Solution
There are in total 118 elements known to exist in nature shown in the periodic table. Every element in the nature has given its own symbol, which is a shorthand method for representing the element. It is an easy way to represent the element by symbol instead of writing out the name of an element. The symbol of the element can be represented by one or two letters. For two letter symbols, only first letter is capitalized. The number of protons present in the nucleus of an atom signifies the atomic number of the atom, the atomic number is unique for every element.
Thus, chemical symbol of cesium is Cs and its atomic number is 55.
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Chapter 4 Solutions
Introductory Chemistry: A Foundation
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- Determine whether each statement that follows is true or false. a Dalton proposed that atoms of different elements always combine on a one-to-one basis. b According to Dalton, all oxygen atoms have the same diameter. c The mass of an electron is about the same as the mass of a proton. d There are subatomic particles in addition to the electron, proton, and neutron. e The mass of an atom is uniformly distributed throughout the atom. f Most of the particles fired into the gold foil in the Rutherford experiment were not deflected. g The masses of the proton and electron are equal but opposite in sign. h Isotopes of an element have different electrical charges. i The atomic number of an element is the number of particles in the nucleus of an atom of that element. j An oxygen 16 atom has the same number of protons as an oxygen17 atom. k The nuclei of nitrogen atoms have a different number of protons from the nuclei of any other element. l Neutral atoms of sulfur have a different number of electrons from neutral atoms of any other element. m Isotopes of different elements that exhibit the same mass number exhibit similar chemical behavior. n The mass number of carbon 12 atom is exactly 12g. o Periods are arranged vertically in the periodic table. p The atomic mass of the second element in the farthest right column of the periodic table is 10u. q Nb is the symbol of the element for which Z=41. r Elements in the same column of the periodic table have similar properties. s The element for which Z=38 is in both Group 2A/2 and the fifth period.arrow_forwardMatch these by placing the correct notation in the appropriate blank. 3467Se3367As3567Br3672Kr a. Contains 33 neutrons b. Contains greatest number of neutrons c. Contains equal number of protons and neutrons d. Contains the same number of neutrons as there are protons in As-67arrow_forwardThe natural abundances and isotopic masses of the element neon (Ne) are Calculate the atomic mass of naturally occurring neon.arrow_forward
- Give the complete symbol (XZA), including atomic number and mass number, of (a) a nickel atom with 31 neutrons, and (b) a tungsten atom with 110 neutrons.arrow_forwardHydrazine, ammonia, and hydrogen azide al1 contain only nitrogen and hydrogen. The mass of hydrogen that combines with 1.00 g of nitrogen for each compound is 1.44 101 g, 2.16 101 g, and 2.40 102 g, respectively. Show how these data illustrate the law of multiple proportions.arrow_forwardThe following isotopes have applications in medicine. Write their symbols in the form XZA. a. cobalt-60 b. phosphorus-32 c. iodine-131 d. sulfur-35arrow_forward
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