Unit 2 Test REVIEW

Unit 2 Test REVIEW

Assessment

Flashcard

Chemistry

9th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the position of an element in the periodic table if its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁵?

Back

Group 17

2.

FLASHCARD QUESTION

Front

What happens to energy as an atom goes from ground state to excited state?

Back

It increases

3.

FLASHCARD QUESTION

Front

Which electron configuration belongs to Chlorine (Cl)?

Back

1s² 2s² 2p⁶ 3s² 3p⁵

4.

FLASHCARD QUESTION

Front

How many neutrons are in the following symbol? (Assuming the symbol has a mass number of 15 and atomic number of 7)

Back

8

5.

FLASHCARD QUESTION

Front

How many valence electrons should Lithium have in its Lewis dot model?

Back

1

6.

FLASHCARD QUESTION

Front

What is the definition of valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

7.

FLASHCARD QUESTION

Front

What is the significance of the periodic table's groups?

Back

Elements in the same group have similar chemical properties and the same number of valence electrons.

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