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Chemistry Unit 2 Vocab

Chemistry Unit 2 Vocab

Assessment

Flashcard

Chemistry

9th - 12th Grade

Practice Problem

Hard

Created by

Cristy Orellana

Used 1+ times

FREE Resource

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29 questions

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1.

FLASHCARD QUESTION

Front

Atomic Mass

Back

weighted average of the element’s isotope

2.

FLASHCARD QUESTION

Front

Alpha Particles

Back

a helium-4 nucleus ( 42 𝐻𝑒 or 42α) with a charge of +2 that consists of

3.

FLASHCARD QUESTION

Front

Cathode

Back

the negative battery electrode that receives electrons in an electrical circuit; in an electrochemical cell, reduction takes place at the cathode terminal

4.

FLASHCARD QUESTION

Front

Cathode Ray

Back

emitted from the negative electrode in a gas discharge tube; these negative particles are called electrons and β-particle

5.

FLASHCARD QUESTION

Front

Isotope

Back

atoms of the same element with different atomic masses due to different amounts of neutrons

6.

FLASHCARD QUESTION

Front

Law

Back

provides a description of a directly observable phenomenon; describes what will or is expected to happen in a certain set of circumstances

7.

FLASHCARD QUESTION

Front

Law of Definite Proportions

Back

whenever two or more elements combine to form a compound, they do so in a definite proportion by mass

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