Grade 8- Atoms and the Periodic Table Review

Lithium (Li), Sodium (Na), Rubidium (Rb) and Cesium (Cs) are in the same column in the periodic table. Why are these elements in the same column in the periodic table? 

• They are the same size
• They react with each other
• They have similar properties
• They have the same number of protons

What do elements in the same group on the periodic table have in common?

• They have similar chemical symbols
• They have the same atomic number.
• They have similar chemical properties
• They have the same average atomic mass

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18

Which subatomic particle has a negative charge?

• Proton
• Neutron
• Electron
• Quark

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

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

The subatomic particle with a neutral charge is:

• protons
• electrons
• neutrons
• cloud

What type of subatomic particles are found in the cloud?

• neutrons
• electrons
• protons
• reactions

Sodium (Na) is found in period 

• 3
• 2
• 4
• 1

Which TWO of the following subatomic particles are inside the nucleus?

• protons

• electrons

• neutrons

• There are no subatomic particles in the nucleus of an atom.

The Modern Periodic Table of Elements is arranged by

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