Atomic Structure & Isotopes

Atomic Structure & Isotopes

Assessment

Flashcard

Chemistry

9th - 12th Grade

Hard

Created by

Wayground Content

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17 questions

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1.

FLASHCARD QUESTION

Front

The number on the top left is

Back

the number of protons and neutrons

2.

FLASHCARD QUESTION

Front

Approximate mass of an atom with 26 protons, 26 electrons, and 19 neutrons?

Back

45 amu

3.

FLASHCARD QUESTION

Front

Which two notations represent isotopes of the same element?

Back

Media Image

4.

FLASHCARD QUESTION

Front

Which numerical setup can be used to determine the atomic mass of lithium?
Options: (7.5)(6.02 amu) + (92.5)(7.02 amu) , (0.925)(6.02 amu) + (0.075)(7.02 amu) , (0.075)(6.02 amu) + (0.925)(7.02 amu) , (92.5)(6.02 amu) + (7.5)(7.02 amu)

Back

(0.075)(6.02 amu) + (0.925)(7.02 amu)

5.

FLASHCARD QUESTION

Front

Two atoms that are different isotopes of the same element have:

Back

the same number of protons but a different number of neutrons

6.

FLASHCARD QUESTION

Front

the mass of an electron is

Back

less than the mass of a neutron

7.

FLASHCARD QUESTION

Front

Which notations represent atoms that have the same number of protons but a different number of neutrons? Options: H-2 and He-3, S-32 and S-32, Cl-35 and Cl-37, Ga-70 and Ge-73

Back

Cl-35 and Cl-37

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