intro to compounds

intro to compounds

​

Multiple Choice

Are there any compounds on the periodic table?

• yes there are many

• no because only elements are on the periodic table

• there is no way to tell

Multiple Choice

How many atoms of Hydrogen are in H₂O

• 1

• 2

Multiple Choice

Which of the following is a compound?

• Co

• O₂

• CO₂

Multiple Choice

Atoms are most stable when their outer shell is complete.

• true

• false

Multiple Choice

Chemical bonds form when atoms

• combined nuclei

• gain protons

• share or transfer electrons

Multiple Choice

Which sub-atomic particle is involved in chemical bonding?

• Proton

• Neutron

• Valence Electron

Multiple Choice

Which category of elements usually form negative ions?

• metals

• nonmetals

• metalloids

• noble gases

Multiple Choice

A bond that forms when electrons are transferred is called a/an

• ionic bond

• covalent bond

Multiple Choice

Ionic bonding is between a

• nonmetal and nonmetal

• metal and nonmetal

• metal and metal

Multiple Choice

What elements generally make a covalent bond?

• metal and nonmetal

• 2 or more nonmetals

• all metals

Multiple Choice

A covalent bond forms when atoms ___________ electrons.

• gain

• share

• transfer

Metallic Bonding

Metallic bond- formed by weak attraction of
protons in nucleus and “pool” of valence
electrons flowing

■ When a metal and metal bond

■ All metals want to give away valence

electrons

■ Metal atoms play “hot potato” with

valence electrons

■ Electrons in constant motion among all

metal atoms

Multiple Choice

Is the following compound ionic or covalent?

A material that has a low boiling point

• Ionic

• Covalent

Multiple Choice

Is the following compound ionic or covalent?

Exists as a solid, liquid or gas

• Ionic

• Covalent

Multiple Choice

Is the following compound ionic or covalent?

PBr₅

• Ionic

• Covalent