Atomic Theory and Atomic Structure Flashcard

Atomic Theory and Atomic Structure Flashcard

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 happens to the charge of an atom when it loses electrons?

Back

The charge becomes positive.

2.

FLASHCARD QUESTION

Front

Who claimed that matter was made of small, hard particles called 'atomos'?

Back

Democritus.

3.

FLASHCARD QUESTION

Front

What is the symbol for a Bromine ion that gains 1 electron?

Back

Br-1.

4.

FLASHCARD QUESTION

Front

What did Niels Bohr prove about electrons?

Back

Electrons are in energy levels.

5.

FLASHCARD QUESTION

Front

What is the correct order of scientists related to atomic theory from earliest to most recent?

Back

Democritus, John Dalton, JJ Thomson, Ernest Rutherford.

6.

FLASHCARD QUESTION

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.

7.

FLASHCARD QUESTION

Front

What is the nucleus of an atom?

Back

The central part of an atom, containing protons and neutrons.

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