Howell-ReviewUnit1

Fill in the blank: An element is the ______ form of matter.

• simplest

• complex

• liquid

• heaviest

What is the charge of a proton?

• Positive

• Negative

• Neutral

Which subatomic particle is neutral and found in the nucleus with protons?

• Electron

• Neutron

• Proton

Which subatomic particle is found outside of the nucleus in the electron cloud and has a negative charge?

• Proton

• Neutron

• Electron

What are the vertical columns on the periodic table called?

• Periods

• Groups

• Rows

• Blocks

All elements in the same group have the same number of ________ electrons.

• valence

• core

• free

• bonding

Elements in Group 18 have how many valence electrons (with the exception of Helium)?

• 1

• 2

• 3

• 8

Group 17 elements are called _________.

• Halogens

• Noble gases

• Alkali metals

• Transition metals

What are periods on the periodic table?

• The vertical columns

• The horizontal rows

• The diagonal lines

• The groups

All elements in the same period have the ______ in their electron cloud.

• the same number of energy levels

• the same number of protons

• the same number of neutrons

• the same chemical properties