Periodic table

• What are rows in the periodic table called?

  Periods
• What are columns in the periodic table called?

  Groups
• What is the mass number of an element?

  The total number of protons and neutrons in the nucleus.
• What is the atomic number in an element?

  Number of protons and electrons
• Which side are metals on in the periodic table?

  Left
• Is hydrogen a metal or non metal?

  Nonmetal
• Where are non metals located on the periodic table?

  Right side
• What is a metalloid?


  Chemical elements where their properties are in between metals and nonmetals.
• What is an alloy?


  A mixture of two or more metals.