Counting Atoms
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What are molecules made of more than one type of atom called?
Back
Compounds
2.
FLASHCARD QUESTION
Front
Back
Water, consisting of 2 hydrogen atoms and 1 oxygen atom.
3.
FLASHCARD QUESTION
Front
How many elements are there in the periodic table?
Back
There are 118 known elements.
4.
FLASHCARD QUESTION
Front
What does the subscript in a chemical formula indicate?
Back
It indicates how many atoms of an element are present in a molecule.
5.
FLASHCARD QUESTION
Front
How many elements are in the chemical formula HCl?
Back
2 (Hydrogen and Chlorine).
6.
FLASHCARD QUESTION
Front
What is a molecule?
Back
A molecule is a group of two or more atoms bonded together.
7.
FLASHCARD QUESTION
Front
What is the difference between an element and a compound?
Back
An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms.
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