Atoms and Elements Review

What does the TOP number represent?

• atomic mass

• atomic number

• how many carbons there are

• my favorite number

What does the BOTTOM number represent?

• atomic mass

• atomic number

• a dozen eggs

• how old you are

To find the atomic mass we take the sum of the number of protons and the number of electrons.

• True

• False

Tags

NGSS.MS-PS1-1

Electrons are...

• positive

• negative

• neutral (no charge)

Tags

NGSS.MS-PS2-3

Protons are....

• positive

• negative

• neutral (no charge)

Neutrons are.....

• positive

• negative

• neutral (no charge)

Protons and neutrons are found.....

• in the back corner of my closet

• in the nucleus

• floating around the nucleus

• at Walmart

Electrons are found......

• in the book titled "Harry Potter and the Prisoner of Azkaban"

• in the nucleus

• floating around the nucleus

• at BestBuy

Elements to the LEFT of the "steps" are.......

• metals

• non-metals

• metalloids

• noble gases

Elements to the RIGHT of the "steps" are.......

• metals

• non-metals

• metalloids

• noble gases