How many protons are in Beryllium?

• 4
• 9
• 5
• 2

Tags

NGSS.MS-PS1-1

What's a valence electron?

• electrons in the second energy level
• electrons in the outermost energy level
• the atomic number
• electrons in the first level

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does Beryllium have?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does carbon have?

• 1
• 3
• 4
• 5

Tags

NGSS.HS-PS1-1

These elements have ____ valence electrons 

• Full Shell 
• 3
• 2
• 1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The circled elements have _____ electrons in their outer shell:

• 8
• 1
• a full set 
• 7

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When two or more atoms join together, the following can be formed

• elements
• molecules only
• molecules and/or compounds
• compounds only

Tags

NGSS.HS-LS1-6

Electrons have the following charge

• positive
• negative
• neutral
• radioactive

Protons have the following charge

• negative
• positive
• neutral
• radioactive

Cations are

• positive
• negative
• on the right side of the periodi table.
• nonmetals