Periodic Table Review

Elements on the periodic table are arranged in increasing order of ______________.

• number of neutrons
• atomic number
• isotopes
• charge

Vertical (up and down) columns in the periodic table are called _________ of elements and have similar properties. 

• groups
• periods

The horizontal (left to right) rows on the periodic table are known as

• periods.
• atoms.
• groups or families.
• valence electrons.

Carbon has an atomic number of

• 5

• 6

• 12

• 12.01

Tags

NGSS.MS-PS1-1

What is the atomic number for an element with three protons?

• 2
• 1
• 3
• 6

Given the picture ...what is the number of protons?

• 4

• 4.003

• 3

• 2

Tags

NGSS.MS-PS1-1

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

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

What is the chemical symbol for Lithium?

• H
• He
• Li
• N

What group of elements are on the RIGHT side of the staircase?

• metals

• nonmetals

• metalloids

Which of these is a metalloid?

• Na (#11)

• As (#33)

• O (#8)