Warm Up (12-16-24)

Warm Up (12-16-24)

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

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

2.

FLASHCARD QUESTION

Front

How many valence electrons does an element with atomic number 15 have?

Back

An element with atomic number 15 (Phosphorus) has 5 valence electrons.

3.

FLASHCARD QUESTION

Front

What is the electron configuration for chlorine (atomic number 17)?

Back

The electron configuration for chlorine is 2, 8, 7, meaning it has 2 electrons in the first shell, 8 in the second, and 7 in the third.

4.

FLASHCARD QUESTION

Front

How many unpaired electrons does sulfur have?

Back

Sulfur has 2 unpaired electrons.

5.

FLASHCARD QUESTION

Front

What does the Bohr model of the atom state about electron motion?

Back

The Bohr model assumes that all electrons move in circular orbits around the nucleus.

6.

FLASHCARD QUESTION

Front

How many electrons does a neutral atom of argon have?

Back

A neutral atom of argon has 18 electrons.

7.

FLASHCARD QUESTION

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons are the outermost electrons and are involved in forming bonds with other atoms.

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