Question

4 multiple choice 20 points
identify the atom below.
magnesium
carbon
chlorine
calcium

Explanation:

Step1: Recall atomic number definition

The atomic number \(Z\) is equal to the number of protons (\(P\)) in an atom.

Step2: Determine the atomic number

From the diagram, \(P = 20\), so \(Z=20\).

Step3: Match atomic number to element

Looking at the periodic table, calcium (\(Ca\)) has an atomic number of \(20\). Magnesium (\(Mg\)) has \(Z = 12\), carbon (\(C\)) has \(Z=6\), and chlorine (\(Cl\)) has \(Z = 17\).

Answer:

calcium