Grade 9 Science: Electrons
This worksheet covers fundamental concepts of electrons, including their properties, location within an atom, and their role in chemical bonding, suitable for Grade 9 science students.
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Grade 9 Science: Electrons
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Date:
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. What is the charge of an electron?
Positive
Negative
Neutral
Varies
2. Where are electrons found within an atom?
In the nucleus
Orbiting the nucleus in shells
In the neutron
Anywhere within the atom
1. The outermost electrons of an atom are called electrons.
2. When an atom gains or loses electrons, it becomes an .
3. The maximum number of electrons in the first electron shell is .
1. Briefly describe the role of electrons in chemical bonding.
2. Explain why atoms are electrically neutral despite containing charged particles.
Observe the diagram below and answer the question.
1. What does the shaded area in the diagram represent regarding the electron's location?
1. All atoms of the same element have the same number of electrons.
True
False
2. Electrons have significantly more mass than protons.
True
False
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