Bonding

Valence electrons are involved in the formation of a chemical bond

• True

• False

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Chemical bond formed from the electrostatic attraction between positive and negative ions

• covalent bond

• ionic bond

• metallic bond

Tags

NGSS.HS-PS1-3

When 2 atoms share electrons

• Ionic bond

• covalent bond

• metallic bond

In the electron sea model of a metallic bond

• electrons are stationary

• electrons are bonded to particular positive ions

• some electrons are valence electrons and some are not

• mobile electrons are shared by all atoms

Which of the following is NOT an example of a molecular formula?

• H₂O

• B

• NH₃

• O₂

Tags

NGSS.MS-PS1-1

A substance has a low boiling point and does not conduct electricity, this substance could possibly be

• Fe

• NaCl

• NH₃

Use VSEPR theory to predict the shape of the hydrogen chloride molecule, HCl.

• tetrahedral

• linear

• bent

• trigonal planar

Use VSEPR theory to predict the shape of the chlorate ion, ClO₃^–.

• trigonal planar

• octahedral

• trigonal pyramidal

• bent

Which of the following is an example of an IONIC COMPOUND?

• NaCl
• H₂O
• CO₂
• NO

Tags

NGSS.MS-PS1-1

Which of the following is a characteristic property of ionic compounds?

• They form hard, brittle crystals with characteristic shapes
• They have low melting points
• They have low boiling points
• They contain no charged particles

Tags

NGSS.HS-PS1-3