Review of the Basics

Bacteria are grown in a petri dish. One side of the dish is sprayed with an antibiotic. After a week, the number of bacteria colonies is measured on each side. What is the dependent variable?

• the type of bacteria

• the number of bacteria colonies

• the use of antibiotic spray

• the petri dish

What are the vertical columns on the periodic called?

• groups

• periods

• nonmetals

• metals

• metalloids

What do the vertical columns on the periodic table tell us?

• The number of orbitals

• The number of valence electrons (electrons on the outer most shell)

What are the horizontal rows on the periodic table called?

• periods

• groups

• metals

• nonmetals

• metalloids

How many protons and electrons does nickel have?

• 28

• 58.69

Tags

NGSS.MS-PS1-1

What is the atomic mass?

• 58.693

• 28

atomic number

• gas at room temperature, low boiling point

• a subatomic particle that has a negative charge

• number or protons and neutrons

• the number of protons in the nucleus of an atom

period

• Elements that occur in vertical columns on the periodic table.

• A horizontal row of elements in the periodic table

• Found in group two of the periodic table; highly reactive

• A subatomic particle that has a negative charge

Which is an electron?

• A

• B

• C

Tags

NGSS.MS-PS1-1

Which item on this element square represents the atomic number?

• 13

• Al

• Aluminum

• 26.981538