Intro to Chemistry (and Bonding) Review

Ionic bonds occur between...

• 2 metals

• 2 nonmetals

• a metal and a nonmetal

• elements close to each other on the periodic table

What are valence electrons?

• Electrons that do not bond

• Electrons that are closest to the nucleus

• The smallest electrons

• The electrons located in the outermost shell

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The Group Number that an atom belongs to tells us...

• How many valence electrons an atom has

• How many protons an atom has

• How many neutrons an atom has

• How many electrons an atom has in the inner shell

In which type of bond are electrons shared?

• ionic

• covalent

• metallic

• hydrogen

Covalent bonds form between...

• 2 nonmetals

• 2 metals

• A metal and a nonmetal

• Two elements on opposite sides of the period table

In an ionic bond, atoms...

• Stick together

• Lose protons from the nucleus

• Lose all of their valence electrons

• Donate/receive electrons from/to their outermost shell

Tags

NGSS.MS-PS2-3

How many valence electrons does Carbon have?

• 4

• 3

• 5

• 2

Is ammonia (NH3) an ionic compound?

• No

• Yes

• Maybe!?

Tags

NGSS.MS-PS1-1

Choose the covalent compound.

(The one made from only covalent bonds)

• CO₂

• MgO

• NaCl

• NaF

Tags

NGSS.MS-PS1-1

What will Fluorine do with its electrons to become stable?

• Lose 1

• Lose 3

• Gain 1

• Gain 2