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5 Written questions

5 Matching questions

  1. What are isotopes?
  2. Which part of the atom has the most energy?
  3. How many electrons can the 2nd and 3rd shell of an atom hold?
  4. What is an atom?
  5. What is mass?
  1. a up to 8 electrons.
  2. b Elements that exist in different forms
    Forms of an element that differ in mass
    Same num of protons and electrons but diff num of neutrons
  3. c The sum of the number of protons and neutrons in its nucleus.
  4. d The smallest unit of matter that still retains the properties of an element.
  5. e The outer shell.

5 Multiple choice questions

  1. A subatomic particle w/ a negative charge.
  2. cohesion
  3. Solid
  4. The attraction btwn opposite charged ions.
  5. the number of electrons it has.

5 True/False questions

  1. What is the atomic number?The number of protons in an atom.


  2. What primarily determines how an atom behaves?Electrons.


  3. What is a chemical reactions?Changes is the chemical compound of matter.


  4. What is ion?The term for atoms that are electronically charged as a result of gaining/losing electrons.


  5. What is matter?The sum of the number of protons and neutrons in its nucleus.