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Chapter 3 Vocabulary

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1.
5 points
A type of mixture that is not the same throughout
2.
5 points
What is the chemical symbol for Hydrogen?
3.
5 points
Anything that takes up space and has mass.
4.
5 points
Element that has characteristics of both metals and nonmetals and is a solid at room temperature.
5.
5 points
What is the chemical symbol for Hydrogen?
6.
5 points
Two or more atoms of the same element that have different numbers of neutrons in their nuclei.
7.
5 points
How many neutrons are in the nucleus of a Fluorine atom?
8.
5 points
Positively charged particle, located in the center part of an atom.
9.
5 points
Sum of the number of protons and neutrons in an atom.
10.
5 points
Number of protons in the nucleus of each atom, it is the top number in the periodic table.
11.
5 points
A scientist who found evidence that electrons in atoms are arranged according to energy levels.
12.
5 points
Positively charged, central part of an atom.
13.
5 points
A very small particle that makes up everything. It consists of subatomic particles called protons, neutrons, and electrons.
14.
5 points
A type of mixture that is the same throughout
15.
5 points
How many valence electrons does Krypton have?
16.
5 points
States that matter cannot be created or destroyed, only changes form.
17.
5 points
What is the chemical symbol for Hydrogen?
18.
5 points
How many valence electrons does Carbon have?
19.
5 points
How many protons are in the nucleus of a Rubidium atom?
20.
5 points
Element that is malleable, ductile, a good conductor of electricity and generally has a shiny or metallic luster.
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