Atomic Structure, Isotopes and Ions

Atomic Structure, Isotopes and Ions

Assessment

Flashcard

Chemistry

10th Grade

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

The atomic number is equal to the number of _____________.

Back

Protons

2.

FLASHCARD QUESTION

Front

What is the mass number?

Back

Total number of protons and neutrons.

3.

FLASHCARD QUESTION

Front

If X is the symbol for an element, which of the following two symbols represent isotopes of the same element? I. 77 35 X II. 77 33 X III. 81 37 X IV. 81 35 X

Back

I and IV.

4.

FLASHCARD QUESTION

Front

What distinguishes a neutral atom from an ion?

Back

A change in the number of electrons.

5.

FLASHCARD QUESTION

Front

Isotopes of a given element contain _____________.

Back

The same number of protons but a different number of neutrons.

6.

FLASHCARD QUESTION

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

7.

FLASHCARD QUESTION

Front

Define ion.

Back

An atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

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