Question

an atom of the element chromium has an atomic number of 24 and a mass number of 52. how many electrons are in an uncharged atom of chromium?
0
24
28
52

Explanation:

Step1: Recall atomic - electron relationship

In an uncharged atom, the number of electrons is equal to the atomic number.

Step2: Identify given atomic number

The atomic number of chromium is 24.

Answer:

B. 24