Other questions in this quiz

2. The atomic number of an element is equal to the number of ...?

  • protons in the nucleus
  • protons in the nucleus of its atoms
  • electrons around the atom

3. the earths limited resouces come from..?

  • its crust , the oceans and the atmosphere
  • the volcanoes
  • the air particles that form layers on the earths atmosphere

4. There are about .... different elements from which all substances are made?

  • 100
  • 50
  • 60
  • 2000

5. How are elements arranged in the periodic table?

  • in order of their atomic numbers
  • in size order
  • in the popularity

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