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Ions and Atoms Worksheet

Explore the fundamental concepts of ions and atoms, including their structure, properties, and how they form chemical bonds.

Grade 10 Science ChemistryIons and Atoms
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Multiple ChoiceFill in the BlanksTrue / FalseShort AnswerWord Bank

Standards

HS-PS1-1HS-PS1-2

Topics

ChemistryIonsAtomsGrade 10Science
7 sections · Free to use · Printable
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Ions and Atoms Worksheet

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Read each question carefully and provide your best answer. Show all your work for calculations.

1. Which subatomic particle has a positive charge?

a

Electron

b

Neutron

c

Proton

d

Nucleus

2. An atom that has gained or lost electrons is called a(n):

a

Isotope

b

Molecule

c

Ion

d

Compound

3. The atomic number of an element is determined by the number of   in its nucleus.

4. An atom with a net positive charge is called a(n)  , while an atom with a net negative charge is called a(n)  .

5. All atoms of the same element have the same number of neutrons.

T

True

F

False

6. The mass number of an atom is the sum of its protons and electrons.

T

True

F

False

7. Describe the main differences between an atom and an ion. Provide an example of each.

8. Explain how isotopes of an element are similar and how they differ.

Use the words below to complete the sentences.

cation
anion
valence electrons
atomic mass

9. The electrons in the outermost shell of an atom are called  .

10. An ion with a positive charge is known as a(n)  .