Identify each of the following atoms or ions, use the correct name/nomenclature...

Question

1) 18 e-

16 p+

16 n

2) 8 e-

8 p+

8 n

3) 23 e-

26 p+

28 n

Answer 1

Remember that the element is DEFINED by the number of PROTONS.

1) 16 protons = SULFUR

18 electrons makes it a 2- ion

16 neutrons makes it ³²S

So it is ³²S^2-

2) 8 protons = OXYGEN

8 electrons makes it neutral

8 neutrons makes it ¹⁶O

So it is ¹⁶O

3) 26 protons makes it IRON

23 electrons makes it a 3+ ion

28 neutrons makes it ⁵⁴Fe

So, it is ⁵⁴Fe³⁺