Atoms, Ions, and Their Charges Explained

Atoms, Ions, and Their Charges Explained

Assessment

Interactive Video

Chemistry, Science, Physics

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial introduces the concept of ions and elements, using carbon and boron as examples. It explains how ions form when there is an imbalance between protons and electrons, leading to positive or negative charges. The tutorial includes a detailed example of calculating the protons, neutrons, and charge of a platinum ion, emphasizing the terms cation and anion. The video concludes with a summary of key terminology related to ions.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What defines an element in terms of its atomic structure?

The atomic mass

The number of neutrons

The number of protons

The number of electrons

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to an atom when it loses an electron?

It becomes a positive ion

It becomes a neutral atom

It remains unchanged

It becomes a negative ion

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If an atom has more electrons than protons, what is it called?

A molecule

A neutral atom

An anion

A cation

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many protons does a neutral boron atom have?

Six

Five

Four

Seven

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example of platinum, what is the charge of the ion if it has 74 electrons?

Neutral

-4

+4

+2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many neutrons are present in a platinum atom with a mass number of 195?

78

100

117

195

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term for a positively charged ion?

Proton

Neutral ion

Cation

Anion

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