Chemistry Midterm Review 2023

When an atom loses an electron, it becomes a

• positive ion

• negative ion

• neutral ion

• neutral atom

Tags

NGSS.HS-PS1-2

Why do all bonds form?

• so the number of protons equals the number of electrons

• so an atom can become unstable

• to fill the outermost energy level

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Ionic bonds are between...

• Metal and Non-metal
• Non-metal and Non-metal
• Metal and Metal

Tags

NGSS.HS-PS1-2

How are ionic bonds formed?

• Transfer of electrons
• Sharing of electrons

Ionization energy is the...

• energy needed to remove the outermost electron.
• ability of an atom to attract electrons from another atom.

Tags

NGSS.HS-PS1-1

Electronegativity is the...

• energy needed to remove the outermost electron.
• ability of an atom to attract electrons from another atom.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which subatomic particle has a positive charge?

• proton

• neutron

• electron

Which subatomic particle has a neutral or no charge?

• proton

• neutron

• electron

Which subatomic particle has a negative charge?

• proton

• neutron

• electron

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

Tags

NGSS.HS-PS1-1