Ch 2 Les 1 Test Review Quizizz #1

In the modern periodic table elements are arranged by:

• atomic mass
• atomic number
• valence electrons
• number of isotopes

Each column in the periodic table is called a 

• period
• group
• cluster
• unit

The atomic number tells you what?

• number of electrons
• number of protons
• number of neutrons
• both electrons and protons in an atom.

Beryllium is in group number______.

• Group 2
• Group 3
• Group 4
• Group 7

The period for Bromine is ___________.

• 3
• 2
• 4

The number at the bottom of each square on the periodic table is the ...

• atomic number
• atomic mass
• chemical symbol
• element name

The number at the top of each square on the periodic table is the ...

• atomic number
• atomic mass
• Chemical Symbol
• Element Name

The horizontal row on the periodic table is called a

• group
• family
• period
• atomic number

the basic structural unit of matter

• atom

• matter

• element

• nucleus

an arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column and properties repeat from row to row

• Periodic Table of Elements

• Atomic Theory

• Isotopes

• Subatomic Particles