The starter and exit quiz of the lesson “Why chemical reactions occur”, from the unit “Structure and bonding” (Year 10 Science) by Oak National Academy.
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Oak National Academy
12 questions
Match the following terms to the correct definition.
Which of the following are elements?
Oxygen has an atomic mass of 16.0 and an atomic number of 8. How many electrons does an atom of oxygen have?
Lithium is in Group 1, period 2 of the periodic table. It has an atomic number of 3. How many electrons are found in the outer shell of a lithium atom?
Which of the following are examples of diatomic molecules?
Which of the following statements about subatomic particles are correct?
Match the following terms to the correct definitions.
In which of the following are electrons donated and accepted?
Which of the following are monatomic substances?
What type of bonding forms between non–metal atoms?
Why is an oxygen atom considered to be unstable?
Which of the following diagrams shows an ionic substance?
