a) How many protons, electrons, and neutrons are in an 266 Sg atom? (atomic mass = 266) b) Atoms of Sg are very unstable, and it is therefore difficult to study this element's properties. Based on the position of Sg in the periodic table, what element should it most closely resemble in its chemical properties?

Q: The two naturally occurring isotopes of element X are ^18X (80%) and ^19X. What is the average…

A: Average atomic mass: The average atomic mass of an element is the sum of the masses of its isotopes,…

Q: 2. For each ionic depiction, give the name of the parent atom, its mass number, and its group and…

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Q: Which subatomic particle(s) are found in the nucleus of the atom? Enter the subatomic particle or…

A: To find : Which subatomic particles are found in the nucleus of the atom.

Q: an element is a mixture of two isotopes. one isotope of the element has an atomic mass of 34.96885…

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Q: An element 'A' contains 5 protons, 5 electrons and 6 neutrons. it is a cation of Boron It becomes a…

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A:

Q: The natural abundance of the three stable isotopes are 90.92% isotope A (19.9924 amu), 0.3104%…

A:

Q: Bromine has two naturally-occurring isotopes. 79Br has a mass of 78.9 amu and accounts for 58.3% of…

A:

Q: Consider an element Z that has two naturally occurring isotopes with the following percent…

A: average atomic mass= ∑%abundant×Molar mass/100 using this we can calculate the average atomic mass…

Q: Give the number of protons, neutrons, and electrons in each element: (a) silver-115; (b) 197Au; (c)…

A: General representation of an element : XZA  Z = atomic number = number of protons  Number of protons…

Q: Which of the following isotopes has the highest number of neutrons? 15 7F 17 8.

A: The given options are,

Q: Calculate the atomic mass of magnesium. The three magnesium isotopes, Mg-24, Mg-25, and Mg-26, have…

A: Isotope is the same number of protons and electrons but have a different number of neutrons in an…

Q: Naturally occurring sulfur consists of four isotopes: 32S (31.9721 amu, 95.04%); 33S (32.9715 amu,…

A: Answer is written and explained below:

Q: At some point in the future, nuclear chemists have synthesized two stable isotopes of bohrium.…

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Q: The element X has three naturally occurring isotopes. The isotopic masses (amu) and % abundances of…

A: Atomic species that have the same atomic number but different mass numbers are called isotopes.  An…

Q: Antimony has many uses, including infrared devices and as part of an alloy in lead storage…

A: a) Notation for each isotope antimony 121 ---->   51Sb121   antimony 123 ---->   51Sb123

Q: An element has a mass of 207 and has 125 neutrons in its nucleus. How many protons and electrons…

A: The smallest unit that retains an element's attributes is defined as an atom. Atoms can't be created…

Q: A fictitious element only has two naturally occurring isotopes: X and Y. If isotope X has a mass of…

A:

Q: An atom has a diameter of 2.50 Å and the nucleus of that atom has a diameter of 6.00 x 10-5 Å.…

A: There two questions to be solved and both of them are numerical aptitude type we have provided the…

Q: Antimony has two naturally occurring isotopes: 121Sb (isotopic mass 120.904 amu) and 123Sb (isotopic…

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Q: Suppose a new element is discovered and it has two stable isotopes. One isotope has a mass of 70.387…

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Q: A hypothetical element Q (atomic mass: 142.61) consists of two stable isotopes: 45.3 % isotope A…

A: Relative abundance of isotope A is 0.453(45.3%) and hence, relative abundance of isotope B is 0.547…

Q: (1) How many protons and neutrons are there in the r 85 and a mass number of 218? protons = neutrons…

A:

Group 14 Elements

The following elements come under group 14 of the periodic table.