Intro to the Periodic Table

Carbon has an atomic number of

• 5

• 6

• 12

• 12.01

Tags

NGSS.MS-PS1-1

An element's atomic number represents

• the number of protons and neutrons in the nucleus

• the number of electrons in the nucleus

• the number of neutrons in the nucleus

• the number of protons in the nucleus

Rows of elements are called

• Columns

• Periods

• Groups

• Families

Columns of elements are called

• Groups

• Periods

• Families

• Rows

The Element symbol for Carbon is

• CO₂

• C

• H₂O

• Ca

The atomic mass of carbon is

• 12.01

• 6

• 12.1111

• 11

Tags

NGSS.MS-PS1-1

What is atomic mass defined as?

• the number of protons

• the number of protons and neutrons

• the number of neutrons

• the number of protons and electrons

Elements on the periodic table are arranged in increasing order of ______________.

• number of neutrons
• atomic number
• isotopes
• charge

True or False:  Mendeleev left blank spaces in his periodic table because some elements were not yet discovered, but he predicted where they would fit in on the table.

• True
• False