Periodic Table, Atomic Structure, Naming Ionic Compounds Review

How many electrons does Si contain? (click to see image)

• 14
• 28
• 2
• 4

Elements which are shiny, conduct electricity and heat are called

• metal
• nonmetal
• metalloid
• nonexistent

Group 18 elements are known as the _____ _____ and have full valence shells.

• royal gases.
• supreme solids.
• noble gases.
• legit liquids.

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

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

 Why does group number 18 have the least reactive elements?

• They all have an odd number of protons.
• They all have an even number of protons. 
• They have the largest masses.
• Their electron shells are the most filled and do not need to be very reactive.
  

The period for Bromine is ___________.

• 3
• 2
• 4

What is the atomic mass of "F"

• 9
• 18
• 17
• 19

Which statement is accurate regarding subatomic particles?

• electrons are the heaviest particle, with a positive charge

• protons and electrons are equal in mass with positive charges

• electrons are neutral with the least mass

• protons have a positive charge with a mass of 1 amu and neutrons are neutral with the same mass as a proton

How are the elements in the modern periodic table arranged?

• atomic mass

• chemical symbol

• element's name

• atomic number

All the matter is made up of the same atom. Which sentence correctly describes atoms?

• All substances are made of the same atom.

• An atom is the smallest particle of the nucleus.

• An atom is the smallest particle of an element.

• An atom is a substance that has been cut in half.