chemistry exam

All the following are metals except

• Chlorine

• Copper

• Aluminum

Which if the following is closest to the nucleus

• S

• P

• D

Made from 2 different elements

• Composite

• Mixture

Tags

NGSS.MS-PS1-1

The allow brass is made from copper and zinc. Brass is a

• element

• mixture

• composite

Which is not an example of a chemical formula

• H2O

• NaCl

• NH4

• Bk3

Tags

NGSS.MS-PS1-1

How many columns are on the periodic table

• 9

• 12

• 18

Columns on the periodic table are known as

• neighbors 1-12

• clusters 1-17

• groups 1-18

How many periods are on the periodic table?

• 2

• 7

• 9

Atomic number equals the number of

• electrons

• protons

• neutrons

The only subatomic particle that does not carry an electric charge is a

• electron

• neutron

• proton