Question

for na+ with a mass number of 22 what is the isotope name. *
sodium-10
sodium-23
sodium-11
sodium-12
sodum-21
sodium-22
for na+ with a mass number of 22 what is the atomic number *
131
54
22
25
100
11

Explanation:

Step1: Recall isotope naming convention

Isotopes are named by element - mass number. Given mass number is 22 for sodium ion (Na+), so name is Sodium - 22.

Step2: Recall atomic number concept

Atomic number is characteristic of an element and doesn't change with ion formation or isotope. Sodium (Na) has atomic number 11 always.

Answer:

For the first question: Sodium-22
For the second question: 11