10/31 Unit Atoms and Periodic Table

When an atom loses an electron, it becomes a

• positive ion

• negative ion

• neutral ion

• neutral atom

An electron has what kind of charge?

• no charge
• positive 
• negative
• it depends

Valence electrons are found

• in the innermost energy level of an atom

• in the middle energy levels of an atom

• in the outermost energy levels of an atom

Cations

• Gain electrons, has an overall positive charge

• Lose electrons, has an overall positive charge

• Lose electrons, has an overall negative charge

• Gain electrons, has an overall negative charge

Anions

• Gain electrons, has an overall positive charge

• Lose electrons, has an overall positive charge

• Lose electrons, has an overall negative charge

• Gain electrons, has an overall negative charge

True or False

Atoms can share electrons

• True

• False

Has a definite shape, mass, and volume

• solid

• liquid

• gas

• matter

What atom matches this electron configuration?
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

• Zinc
• Copper
• Nickel
• Germanium

What atom matches this electron configuration?
1s²2s²2p⁶3s²

• Neon
• Magnesium
• Aluminum
• Potassium

How many electrons does Si contain? (click to see image)

• 14
• 28
• 2
• 4