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Isotopes Worksheet

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Ions and Isotopes Practice Worksheet

Isotopes:

1.

Define an isotope.

Name:

2.

What would happen if the number of protons were to change in an atom?

3.

Another way to write isotope

6

14 C is carbon-14. What is the number of neutrons for this isotope?

4.

Here ae three isotopes of an element:

6

12 C

6

13 C

6

14 C a.

The element is: b.

The number 6 refers to the: c.

The numbers 12, 13, and 14 refer to the: d.

How many neutrons are in the first isotope: e.

How many neutrons are in the second isotope: f.

How many neutrons are in the third isotope:

# of protons

# of neutrons

# of electrons

Ions:

Determine the charges of the scenarios below:

1.

An atom having lost two electrons

Chromium-58 Chromium-63

2.

An atom having lost six electrons

3.

An atom having gained one electron

4.

An atom having gained three electrons

5.

An atom having lost 5 electrons

Extension: For each of the following ions listed below use the periodic table to determine the total number of electrons that element contains.

1.

Al +3

2.

Fe +3

3.

Mg +2

4.

Sn +2

5.

Co +2

6.

Li +1

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