PT and Atoms

Each row in the periodic table is called

• group

• period

• column 

In the modern periodic table elements are arranged by:

• atomic mass

• atomic number

• number of isotopes

Each column in the periodic table is called a 

• period

• group/family

• cluster

Which group of the periodic table is composed of inert (not reactive)  gases?

• alkali metals (group 1) 

• halogens (group 7) 

• noble gases (group 0) 

Which two subatomic particles are found in the NUCLEUS of an atom?

• protons & nuetrons

• neutrons & electrons

• electrons & protons

The subatomic particle with a neutral charge is:

• protons

• electrons

• neutrons

How many protons does this element have?

• 40

• 20

• 41

Tags

NGSS.MS-PS1-1

Name group 1 on the periodic table.

• alkali metals

• noble gases
  

• halogens

Tags

NGSS.MS-PS1-1

Name group 7 on the periodic table.

• noble gases

• halogens

• alkali metals

What do the numbers down the side tell us about the atoms in each row?

• number of protons
• number of electrons
• number of energy levels
• absolutely nothing