Chemical Bonding

Electronegativity _______________ down a group and _______________ across a period from left to right.

• Increases, Increases

• Decreases, Decreases

• Increases, Decreases

• Decreases, Increases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Atomic size _______________ down a group and _______________ across a period from left to right.

• Increases, Decreases

• Increases, Increases

• Decreases, Decreases

• Decreases, Increases

• Remains constant, Increases

Tags

NGSS.HS-PS1-1

Which of the following is the most electronegative element on the periodic table?

• Hydrogen

• Fluorine

• Strontium

• Radon

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following shows the correct order of increasing atomic size?

• Potassium, Calcium, Nickel, Bromine

• Radium, Barium, Magnesium, Beryllium

• Nitrogen, Phosphorus, Antimony, Bismuth

• Hydrogen, Iron, Titanium, Fluorine

Covalent compounds form between

• A metal and a nonmetal

• 2 metals

• 2 noble gases

• 2 nonmetals

A covalent bond is formed when 2 atoms _______________ electrons.

• Gain

• Lose

• Exchange

• Share

• Transfer

When electrons are shared equally, a _______________ molecule is formed.

• Polar

• Nonpolar

• Ionic

• Covalent

• Metallic

A nonpolar molecule forms when atoms with ___________________________ electronegativity values bond together.

• The same or similar

• Extremely different

• 3 or more

• Very high

• Absolutely no

Which of the following molecules is a nonpolar molecule?

• HF

• H₂O

• F₂

• HCl

A molecule with 2 shared pairs of electrons will have a ____________ bond.

• Double

• Single

• Triple

• Quintuple

• Quadruple