Valence Electrons

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

How many valence electrons does sodium have?

Back

1

Front

How many valence electrons does helium have?

Back

2

Front

How many valence electrons does phosphorus have?

Back

5

Front

Which elements have the most similar chemical properties?

Back

Elements in the same group of the periodic table have similar chemical properties.

Front

What particle in an atom has a negative charge?

Back

Electron

Front

What is the maximum number of valence electrons an atom can have?

Back

8 (octet rule)

Tags

NGSS.HS-PS1-1

Front

Why are valence electrons important?

Back

They determine how an atom can bond with other atoms and its chemical properties.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

What is the relationship between valence electrons and the periodic table?

Back

Elements in the same group have the same number of valence electrons.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

How do you determine the number of valence electrons for main group elements?

Back

The number of valence electrons is equal to the group number for main group elements.