Chemical Bonding Introduction

In which of these are the atoms held together by an ionic bond?

• Br₂

• H₂O₂

• CaS

• CO

Covalent bond forms between....

• Nonmetals

• Metals

• Nonmetal and a Metal

• Metal and a Nonmetal

Ionic bonds are usually formed between two nonmetals.

• True

• False

Ionic Bonding involves...

• The transfer of protons

• The transfer of nuetrons

• The transfer of electrons

Which of the following is NOT a characteristic typical of ionic compounds?

• High melting point

• Conducts electricity when dissolved in water

• Hard, crystalline solids

• Low boiling points

Tags

NGSS.HS-PS1-3

Which type of material usually involves atoms sharing a "sea of electrons"

• ionic

• Covalent

• Metallic

Which of these occurs in an covalent bond?

• two or more atoms share two electrons

• like-charged ions attract

• oppositely charged ions attract

• two atoms share more than two electrons

Why do atoms bond?

• to increase their atomic numbers

• to become more stable

• to attain an octet of 8 valence electrons

• more than one of these is correct

Which of the following has a full valence shell (8 valence electrons)?

• Oxygen

• Neon

• Barium

• Carbon

Elements on the RIGHT side of the periodic table will most likely form:

• Positive ions

• Negative ions

• Neutral Ions

• None of these