Atoms and Elements 03
Chlorine is used to keep swimming pools clean using a chemical reaction.

Atoms and Elements 03

This KS3 Science quiz takes a further look at atoms and elements. Of the 118 known elements, about 90 occur naturally in space or on Earth, but many of them exist in only very small quantities. Most of the elements are combined with each other in the Earth's crust or atmosphere. When elements are combined with other different elements, we say they have formed a compound. Salt is an example of a compound (made from the elements sodium and chlorine joined together), so is water (made from hydrogen and oxygen joined together). There are some that are not very reactive, like gold, and these don't usually form compounds but can be found occuring on their own.

When elements join together to form compounds, their names need to be joined together too. If just two elements join together, one is usually a metal and the other is usually a non-metal. To get the name of the compound, you put the name of the metal first and then change the name of the non-metal to make it end in -ide. This sounds complicated at first but once you get used to it, it is dead easy to do.

Did you know...

You can play all the teacher-written quizzes on our site for just £9.95 per month. Click the button to sign up or read more.

Sign up here
  1. Which of these substances is an element?
    The other three are compounds. A compound is made from different types of atom CHEMICALLY JOINED together. If the different types of atom are not chemically joined together, you have a mixture
  2. Which of these substances is an element?
    Air is a mixture, fire is not an actual substance, it is just a place where things are really hot and water is a compound
  3. Which of these show a diatomic element?
    Diatomic = 2 atoms. Element = Single substance
  4. An element is a substance that .......
    So if you had a sample of a substance that contained only carbon atoms, you would have a sample of the element carbon
  5. Which of these metals is a pure element?
    The others are are all mixtures of two or more elements
  6. When the elements lead and bromine combine together, the name of the substance formed is called .......
    To remember: when naming a compound with two elements in it, the name of the metal comes first and the name of the non-metal is changed to end in -ide
  7. C is the correct chemical symbol for .......
    You do not need to know the symbols of all of the elements but it helps your study of science if you know a few
  8. The smallest part of an element is called .......
    An atom can actually be split into smaller particles called protons, neutrons and electrons but you can't do that using chemicals
  9. The correct chemical symbol for magnesium is .......
    If the symbol has two letters, the first is a capital and the second is not
  10. When two elements combine, the name of the compound will end in .......
    The situation is a bit more complicated when you get more than two elements chemically joined together!

Author: Sue Davison

The Tutor in Your Computer!

Quiz yourself clever - 3 free quizzes in every section

  • Join us (£9.95/month) to play over 4,000 more quizzes
  • Reinforce your school learning in the comfort of home
  • Build your confidence in National Curriculum subjects
  • Test yourself to identify gaps in learning
  • Revise fast for tests and exams

© Copyright 2016-2017 - Education Quizzes
TJS - Web Design Lincolnshire

Valid HTML5

We use cookies to make your experience of our website better.

To comply with the new e-Privacy directive, we need to ask for your consent - I agree - No thanks - Find out more