Question

A single atom of an element has 11. protons, 11. electrons, and 12 neutrons. Which element is it?

Answer 1

Answer: B

Step-by-step explanation:

Answer 2

Sodium (Na)

Step-by-step explanation:

The atomic number (it's order in the periodic table) is the same as the number of protons. Since there are 11 protons, it is the 11th element. Referencing the periodic table, that is Sodium, represented by Na.