4.1 Study guide Flashcards

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1
Q

What are the charges of protons, neutrons, and electrons?

A

Protons have a positive charge, neutrons have a neutral charge, and electrons have a negative charge.

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2
Q

What is an isotope?

A

An isotope is a variant of an element that differs from other atoms of the element by the mass number.

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3
Q

What is the atomic mass of a nitrogen element if there is 7 neutrons?

A

Nitrogen atoms have 7 protons, so 7 protons plus 7 neutrons gives an atomic mass of 14.

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4
Q

How can isotopes be used in science?

A

Isotopes can be used in radiocarbon dating and they can be used to trace organisms.

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5
Q

How do you find the ion charge of an element?

A

The ion charge can be found by subtracting the number of electrons from the number of protons.

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