Valence Electrons and Core Electrons

Valence electrons are the _______

• outer most electrons in an atom

• total electrons in an atom

The _____ in periodic table determines the number of valence electrons an element has.

• period/row

• group/column

USE THE PERIODIC TABLE

How many valence electrons does Phosphorus have?

• 31

• 5

• 15

• 4

Tags

NGSS.HS-PS1-1

How many valence electrons does Hydrogen have?

• 4

• 1

• 8

• 2

Tags

NGSS.MS-PS1-1

How many valence electrons should Magnesium have in its electron dot diagram?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

How many valence electrons does potassium have?

• 19

• 6

• 39

• 1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does Carbon have?

• 4

• 6

• 14

• 12

Tags

NGSS.HS-PS1-1

How many core electrons does Neon have?

• 1

• 2

• 8

• 10

Neon is a noble gas because it is stable, nonreactive, and has ___ valence electrons.

• 1

• 8

• 10

• 4

Tags

NGSS.HS-PS1-1

This term is used to show the number of electrons found inside an atom besides the valence electrons.

• inner electrons

• inside electrons

• core electrons

• nucleus electrons