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Unit 2.0 Atoms and Isotopes(flash card)

Unit 2.0 Atoms and Isotopes(flash card)

Assessment

Flashcard

Chemistry

10th - 12th Grade

Practice Problem

Easy

Created by

Allen Saunders

Used 1+ times

FREE Resource

Student preview

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19 questions

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1.

FLASHCARD QUESTION

Front

Which shows the correct parts of the nucleus?

Back

Neutron and Proton

Answer explanation

The nucleus of an atom contains protons and neutrons. Electrons are found in the electron cloud surrounding the nucleus, not inside it. Therefore, the correct answer is 'Neutron and Proton'.

2.

FLASHCARD QUESTION

Front

Which part of an atom has the smallest mass?

Back

Electron

Answer explanation

The electron has the smallest mass among the three subatomic particles. Protons and neutrons have significantly greater masses, making the electron the lightest component of an atom.

3.

FLASHCARD QUESTION

Front

Which part of an atom has a positive charge?

Back

Proton

Answer explanation

The proton is the part of an atom that carries a positive charge. Neutrons have no charge, and electrons carry a negative charge. Therefore, the correct answer is proton.

4.

FLASHCARD QUESTION

Front

Which part of an atom has a negative charge?

Back

Electron

Answer explanation

The electron is the part of an atom that carries a negative charge. Protons have a positive charge, and neutrons are neutral, meaning they have no charge.

5.

FLASHCARD QUESTION

Front

Which part of an atom has no charge?

Back

Neutron

Answer explanation

The neutron is the part of an atom that has no charge, making it neutral. Protons have a positive charge, and electrons have a negative charge, so the correct answer is the neutron.

6.

FLASHCARD QUESTION

Front

Using the picture from a periodic table, what is the Atomic Number?

Media Image

Back

26

Answer explanation

The Atomic Number represents the number of protons in an element. For iron (Fe), this number is 26, making it the correct choice. The other options represent the element symbol (Fe) and its atomic mass (55.845, 56).

7.

FLASHCARD QUESTION

Front

Using the picture from a periodic table, what is the Atomic Mass?

Media Image

Back

55.845

Answer explanation

The atomic mass of an element is a weighted average of its isotopes. For iron (Fe), this value is approximately 55.845, making it the correct choice among the options provided.

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