Columns and Rows Periodic Table

A ___________ is an arrangement of elements in columns

• columns
• rows
• periodic table
• electron shell

Tags

NGSS.HS-PS1-1

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.

Elements which are shiny, conduct electricity and heat are called

• metal
• nonmetal
• metalloid
• nonexistent

The atoms along the staircase are called 

• metals
• nonmetals
• metalloids
• noble gases

Tags

NGSS.HS-PS1-1

The yellow atoms are called 

• metals
• nonmetals
• metalloids
• noble gases

Tags

NGSS.HS-PS1-1

The period for Bromine is ___________.

• 3
• 2
• 4

Beryllium is in group number______.

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

An element's identity is determined by the number of

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