Periodic Table of Elements Atomic Numbers

Periodic Table of Elements

by: JEZREEL PALMES

Characteristics of Elements and Compounds

All elements have certain characteristics that are summarized on the periodic table. These characteristics include the element's symbol, atomic number, and atomic mass.

Element's Symbol

Chemical symbols are abbreviations used in chemistry for chemical elements

Multiple Choice

What is the symbol of Helium?

• h

• H

• Hy

• He

Element's atomic number

The atomic number is the number of protons in the nucleus of an atom.

Multiple Choice

What is the atomic number of Carbon?

• 12

• 6

• C

• Ca

Element's atomic Mass

The atomic mass is the mass of an atom

Multiple Choice

What is the atomic mass of Potassium?

• 19

• K

• Po

• 39.098