Understanding Atomic Charge and Ions

Understanding Atomic Charge and Ions

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains why atoms have equal numbers of protons and electrons, making them neutral. It uses lithium as an example, detailing its subatomic particles and their charges. The concept of ions, which are charged atoms, is introduced, explaining how they differ from neutral atoms. A practice question is provided to reinforce understanding, followed by a review question on lithium's neutrality.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main reason atoms have equal numbers of protons and electrons?

To make the atom an ion

To make the atom neutral

To make the atom negatively charged

To make the atom positively charged

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many protons does a lithium atom have?

Three

Two

Five

Four

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of an atom with three protons and three electrons?

It depends on the number of neutrons

Negative

Neutral

Positive

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an ion?

An atom with an equal number of protons and electrons

An atom with a charge

A neutral atom

An atom with more neutrons than protons

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when an atom is electrostatically charged?

It becomes neutral

It attracts other charged particles

It repels other atoms

It loses its electrons

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does an atom with six protons and six electrons not have an electrostatic charge?

Because it has more neutrons

Because it has more electrons than protons

Because the charges cancel each other out

Because it is an ion

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the overall charge of an atom with equal numbers of protons and electrons?

Positive

Neutral

It varies

Negative

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