The Atom Unit 3-4

The Atom Unit 3-4

Assessment

Flashcard

Chemistry

10th Grade

Hard

Created by

Tumelo Montshonyane

FREE Resource

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20 questions

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1.

FLASHCARD QUESTION

Front

What is the name for Protons and Neutrons?

Back

Nucleons

2.

FLASHCARD QUESTION

Front

What is the mass of an Electron?

Back

1/1840 u

3.

FLASHCARD QUESTION

Front

What two things are common in Isotopes?

Back

Their element, and atomic number (number of Protons)

4.

FLASHCARD QUESTION

Front

How many electrons does a Magnesium ion have? (click the periodic table)

Media Image

Back

10 electrons

5.

FLASHCARD QUESTION

Front

State Pauli's Exclusion Principle

Back

There is a maximum of two electrons in each orbital provided they have opposite spin

6.

FLASHCARD QUESTION

Front

What is the electron configuration of Silicon? (click the periodic table)

Media Image

Back

1s² 2s² 2p⁶ 3s² 3p²

7.

FLASHCARD QUESTION

Front

How many Valence Electrons does this electron configuration have, 1s²2s²2p⁴?

Back

6 Valence Electrons
(The sum of the outermost energy level's superscript, 2s²2p⁴... 2 + 4 = 6)

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