Question

I need help with this homework assignment problem ​

Answer 1

A. The ion is Ar^2+

B. 18

C. 0

Step-by-step explanation:

There are total of 2 + 2 + 6 + 2 + 4 = 16 electrons

since the cation is +2, it's neutral state should be 16 + 2 = 18

A. The ion is Ar^2+

B. 18

C. since 3p => 4s => 3d, so there is no 3d

Answer 2

Answer:. Chemical symbol for ion is : S, 16 electrons,

Explanation: If you add the electrons (which is the exponents of each one you get:

2 + 2+ 6+2+4 = 16. So the atom has 16 protons and 16 neutrons. Neutrons have no charge and protons are positive so to balance out the 16 positive protons there are 16 electrons. The atomic number is 16 and on the periodic table that is sulfur. The symbol is S.

3 d orbitals are vacant in sulphur but are accessible, so it can make strong covalent bonds.