Question

use the periodic table to answer the following questions: atoms of which element contain 25 protons? magnesium (mg) aluminum (al) tin (sn) manganese (mn) which element has an atomic number of 16? oxygen (o) sulfur (s) germanium (ge)

Explanation:

The atomic number of an element is equal to the number of protons in its atom. Looking at the periodic - table, magnesium has atomic number 12, aluminum has atomic number 13, tin has atomic number 50, and manganese has atomic number 25. Also, oxygen has atomic number 8, sulfur has atomic number 16, and germanium has atomic number 32.

Answer:

• Atoms of which element contain 25 protons?
• D. manganese (Mn)
• Which element has an atomic number of 16?
• B. sulfur (S)