Counting Atoms

Counting Atoms

Assessment

Flashcard

Chemistry

8th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the periodic table?

Back

A table that organizes all known chemical elements based on their atomic number, electron configuration, and recurring chemical properties.

2.

FLASHCARD QUESTION

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means, consisting of only one type of atom.

3.

FLASHCARD QUESTION

Front

What is a compound?

Back

A substance formed when two or more different elements are chemically bonded together.

4.

FLASHCARD QUESTION

Front

What is the chemical symbol for oxygen?

Back

O

5.

FLASHCARD QUESTION

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, good conductors of heat and electricity, and malleable, while nonmetals are usually dull, poor conductors, and brittle.

6.

FLASHCARD QUESTION

Front

What does it mean if an element has no subscript in a chemical formula?

Back

It means there is only one atom of that element present in the compound.

7.

FLASHCARD QUESTION

Front

What is the atomic number of an element?

Back

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

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