Periodic table

In the modern periodic table elements are arranged by:

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

Each column(up&down) in the periodic table is called a 

• period
• group
• cluster
• unit

The yellow atoms are called 

• metals
• nonmetals
• metalloids
• noble gases

Tags

NGSS.MS-PS1-1

The period for Bromine is ___________.

• 3
• 2
• 4

Beryllium is in group number______.

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

The periodic table has __ periods.

• 18
• 8
• 2
• 7

An element's identity is determined by the number of

• electrons.
• protons.
• neutrons.
• valence.

The majority of elements on the periodic table are

• man made.
• nonmetals.
• metals.
• gases.

What period and group is Silver (Ag)? 

• Period 2, Group 1
• Period 3, Group 16
• Period 5, Group 11
• Period 2, 14

Tags

NGSS.HS-PS1-1

Rows on the period table are called _____ while columns are called _____.

• groups, families
• groups, periods
• periods, groups
• families, groups