Chemistry Concepts

Chemistry Concepts

Assessment

Flashcard

English

9th Grade

Easy

Created by

Daniel Lombardi

Used 1+ times

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28 questions

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1.

FLASHCARD QUESTION

Front

The attraction between the hydrogen atom in one water molecule and the oxygen molecule in another is an example of a(n) __________ bond.

Back

Hydrogen bond

2.

FLASHCARD QUESTION

Front

What determines the atomic number of an atom?

Back

Number of protons in the atomic nucleus

3.

FLASHCARD QUESTION

Front

Which four elements make up approximately 96% of living matter?

Back

Carbon, hydrogen, nitrogen, oxygen

4.

FLASHCARD QUESTION

Front

An atom with an atomic number of 110 contains how many protons?

Back

110 protons

5.

FLASHCARD QUESTION

Front

Carbon-14 is used for carbon dating to determine the age of items.

Back

Carbon-14 contains six protons and eight neutrons.

6.

FLASHCARD QUESTION

Front

During carbon-14 decay, one neutron becomes a proton and an electron is emitted.

Back

The resulting atom is now a different element because the number of protons has changed.

7.

FLASHCARD QUESTION

Front

Fluorine isotope is used in PET scans.

Back

The non-isotope form of fluorine has 9 electrons, 9 protons, and 10 neutrons.

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