Ionic and Covalent Bonding

How many valence electrons does calcium have?

• 2
• 4
• 6
• 7

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How many valence electrons does hydrogen have?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

How are covalent bonds explained?

• When one atom takes the other atom's electron
• When the atom shares an electron with an another atom
• When the two nucleus merge
• When the neutrons leave the nucleus

Tags

NGSS.MS-PS1-1

How many valence electrons do most atoms need to be stable?

• 1
• 2
• 6
• 8

Tags

NGSS.MS-PS1-1

Ionic or covalent?
NaBr

• Ionic
• Covalent

Ionic or covalent?
H₂O

• Ionic
• Covalent

What type of bond transfers (gains/lose) electrons? 

• Metallic
• Ionic
• Covalent

What is the ONLY part of the atom that makes a chemical bond

• Nucleus
• electrons
• valence electrons
• protons

Atoms that lose electrons become...

• negatively charged
• positively charged
• remain neutral, no charge
• losers

Atoms that gain electrons become...

• negatively charged
• positively charged
• remain neutrally charged
• 21