This simplified model depicts a carbon-12 atom. The atom's nucleus consists of six protons, each with a positive electrical charge, and six neutrons with no electrical charge. Six negatively charged electrons move rapidly outside its nucleus. 6 protons 6 neutrons 6 electrons

Q: "An neutral atom of 94Be has_____ protons, ____ electrons, and _____ neutrons."     4, 5, 4…

A: The atom given is 94Be.

Q: Give the symbol for an element that is 1) a transition metal in the fourth period from the following…

A: The symbol of elements can be written on the basis of the above provided description by using the…

Q: amino acid methionine is depicted in the picture.  C5H11NO2S is the molecular formula for…

A:

Q: Co

A: Isotopes : if two same element have same atomic number but atomic masses are different then we can…

Q: Determine the number of protons, number of electrons, number of neutrons, atomic number, and mass…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Write Chlorine-35 and Chlorine-37 in isotope notation.

A: Given,  Chlorine-35 and Chlorine-37

Q: Which of the following is a halogen? ○ argon ○ oxygen ○ nitrogen ○ chlorine

A: As per the policy, we are allowed to answer the first question only. To get the answer of other…

Q: Decide which element probably forms a compound with oxygen that has a chemical formula most and…

A: Most similar compound is Li. Because Na and Li is in same group so their chemical properties will be…

Q: 4. Identify the Z + 8 element for Si.

A: 4.   Given: Element is Silicon (Si) We have to find the element which is Z+8 for Si

Q: Atoms of the same element have the same number of protons

A: Yes, atoms of the same element contain the same number of protons. Since an atom of one element can…

Q: Mendeleev's Periodic Table vs. the Modern Periodic Table Mendeleev's Periodic Similarities Modern…

A: Mendeleev's periodic table and Modern periodic table helps us to predict position of an element and…

Q: Ex6.89 Find the number of neutrons in the element X having mass number 29 and atomic number 14.

A: X is the given element.The mass number of the element X is =29Atomic number =14We need to find the…

Q: One atom of Se-77 is 6.410 times as heavy as an atom of C-12. What is the atomic mass of Se-77?

A:

Q: How many electrons does the ion Fe +3 ( A=56, Z= 26) have?  (a) 23  (b) 26  (c) 29  (d) 56

A: Interpretation: The number of electrons in the Fe+3 is to be determined. A = 56 Z = 26

Q: Cite 3 scientists whose works were mostly on the development of the periodic table. Give a short…

A: The arrangement of the elements in rows and column on the basis of their atomic number is termed as…

Q: After reading the text in What's now, Let us see how far you have learned this topiC. Activity 1.2:…

A:

Q: What are the atomic atom and atomic mass number of the carbon isotope here in the picture here?

A: An element is represented by the symbol XZA, where Z is the atomic number and A is the mass number.

Q: How many protons are contained in a circular puddle of liquid mercury that is 6.25 inches wide and…

A: In the given question we have to calculate the number of proton contained in a circular puddle of…

Q: For pH = 6.00, calculate the alpha two (a2) in an aqueous solution of citric acid. (Ka1 = 7.45 x…

A: Given: pH = 6.00 Ka1=7.45×10-4Ka2=1.73×10-5Ka3=4.02×10-7

Q: 235U + 'n93Kr + 140BA + 3 'n Consider the substances in the reaction: Uranium-235, Krypton-93, and…

A: •Any element can be represent as :-                         A                            A → mass…

Q: Atoms with the same number of protons but with different electrical charges _____.

A: Electric Charge is two types.    Positive charge Cation and negative charge anions

Q: You are exploring the universe in your spaceship, and you land on a planet that is very similar to…

A:

Q: How many protons, neutrons, and electrons does potassium have? O 20p, 19n, 19e 19p, 39n, 19e 19p,…

A:

Q: Does any element with Z ≤ 92 match the description? An element in Period 5 and group 7A.

A: The question is asking if there is an element with an atomic number (Z) less than or equal to 92,…

Q: Calculate the atomic mass of silver if silver has 2 naturally occurring isotopes with the following…

A: We have to calculate the atomic mass of Ag.

Q: Select the two isotopes of nitrogen-15. N -16 N714 F2− phosphorus-15 O -15 O+ O815 carbon-13 N815

A: We have to select the two isotopes of nitrogen-15. The given options are N-16, N714, F2-, P-15,…

Q: What is the difference between Ba, Ba(NO3)2, and Ba+2? Can they be used interchangeably? Why or why…

A: Barium is one of the most active metal of alkaline earth metal. Barium oxidized it self to Ba2+.…

Q: Aunt Julie went to the jewelry store to buy a gift for her amiga. As an aunt from Poveda, she knows…

A: The karat scale is typically used to measure the purity of gold in jewelry. Pure gold is considered…

Q: Activity 1: Isotopes The picture to the right shows that there are three different kinds of neon…

A: #Activity-1: Three isotopes of hydrogen(H) are Hydrogen-1 (H-1), HYdrogen-2(Deuterium, D-2) and…

Q: Arrange the isotopes of sulfur and phosphorus in order of decreasing the number of neutrons.

A:

Q: Select the two isotopes of nitrogen-15. carbon-13 O phosphorus-15 N-16 F2 - 15 O-15

A:

Q: What is the abundance of beryllium-10 ?

A: Isotopes are atoms of same elements which have same atomic number but different mass number. In…

Q: Predict which one is the most stable nucleus amongst _8 O^16, _8 O^17 and _8 O^18. ( In this case…

A: The objective is to determine the most stable oxygen atom.

Q: Locate the row containing lithium (Li), sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs).…

A:

Q: NUnilar ext Calcium-39 Gold-197 125 82 +1 Isotope Name (w/mass number) Atomic Number of Number of…

A: Atomic mass of any element is given following expression Atomic mass = Total number of Protons +…

Q: Fill in the blank in the following chemical reaction that occurs in the Sun: Hydrogen-2 + proton = O…

A: The Sun primarily generates energy through a process called nuclear fusion. Here's a simplified…

Q: 165 21. Identify the neutron-to-proton ratio for the isotope 67H0 and determine if the isotope is…

A: Identify the neutron-to-proton ratio in the given nuclide--

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.