Question

how many electrons are in a neutral element of calcium? * 1 point
20
19
21
22
what characteristic is shared by elements in groups 3-12 (transition metals)? * 1 point

Explanation:

Step1: Recall the concept of neutral atoms

In a neutral atom, the number of electrons is equal to the number of protons, and the number of protons is given by the atomic number.

Step2: Determine the atomic number of Calcium

Calcium has an atomic number of 20. So, for a neutral calcium atom, the number of electrons is equal to its atomic number.

Answer:

20