Ions Worksheet
Explore the basics of ions, their formation, and their properties with this Grade 7 Science worksheet.
Includes
Standards
Ions: The Charged Atoms
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Read each question carefully and answer to the best of your ability.
1. An atom that has gained or lost one or more electrons is called an .
2. A positively charged ion is known as a .
3. A negatively charged ion is known as an .
4. Atoms form ions to achieve a stable outer electron shell, similar to gases.
1. Which of the following statements is true about an atom that loses an electron?
It becomes a cation.
It becomes an anion.
Its atomic number changes.
It becomes electrically neutral.
2. What is the charge of an ion that has 11 protons and 10 electrons?
-1
+1
0
+11
1. All atoms are ions.
True
False
2. Ions are important for many biological processes.
True
False
1. Explain the difference between an atom and an ion.
2. Give an example of a common ion and explain how it forms.