Lewis Structures of Molecules

How are covalent compounds formed?

• when electrons are gained or lost

• when electrons are transferred

• when electrons are shared

• none of the above

Which electron pair takes up more space and determines the shape of a molecule?

• bond

• lone pair

• They take up the same space.

What will the shape of a molecule be if the center atom has 3 bonding domains and 1 nonbonding domain?

• bent

• trigonal planar

• trigonal pyramidal

• tetrahedral

What is the shape of CH₄?

• bent

• trigonal planar

• trigonal pyramidal

• tetrahedral

Which two elements will form a covalent bond?

• Magnesium and Chlorine

• Sodium and Bromine

• Iron and Sulfur

• Carbon and Oxygen

How many valence electrons are nonmetals trying to have to become more stable?

• 5

• 6

• 7

• 8

Tags

NGSS.HS-PS1-1

What is the shape of H₂O?

• linear

• bent

• trigonal planar

• trigonal pyramidal

What is the correct Lewis structure for CI4

• A

• B

• C

• D

Tags

NGSS.HS-PS1-1

What do Lewis structures show?

• The orbits and nucleus of an atom

• The differences in isotopes

• Plum pudding

• Bonding and lone pair electrons

Based on the Lewis dot structures, which of the following contains a nonbonding (lone) pair of electrons?

• H2

• NH3

• CH4

• BH3