Unit 4 Review-new

This is the correct dot diagram for sodium (Na)

• true

• false

Tags

NGSS.HS-PS1-1

This is a correct dot diagram for oxygen (O)

• true

• false

Tags

NGSS.MS-PS1-1

What are valence electrons?

• The innermost electrons

• The outermost electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the octet rule?

• Elements can only have 8 electrons in its outermost shell

• The elements must form an octopus like structure

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does Carbon have

• 1

• 4

Tags

NGSS.HS-PS1-1

How many valence electrons does Argon have

• 8

• 11

Tags

NGSS.HS-PS1-1

Electron dot notation is . . . .

• A representation of an element in which only valence electrons of an atom are shown

• A representation of how compounds are formed.

How many electrons should Helium have around its Lewis dot model?

• 1

• 2

• 7

• 8

Tags

NGSS.HS-PS1-1

Which of the elements in the picture has correct electron dot notation?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ionic bonds form between ---

• nonmetals.

• metals and nonmetals.