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Atoms, Elements, Periodic Table and Compounds vs Mixtures Review Flashcards | StudBud
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Atoms, Elements, Periodic Table and Compounds vs Mixtures Review
Atoms, Elements, Periodic Table and Compounds vs Mixtures Review
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Matter Atoms Elements Periodic Table Compounds Mixtures
Flashcards
19 cards
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Questions
19
Answers
1
If you are not malleable, you are...
Ductile
Nonmalleable
Brittle
Rustic
2
In general, metals are
brittle and dull in appearance
gas at room temperature & bad conductor of heat/electricity
have low ductility and are liquids at room temperature
malleable and are solids at room temperature
3
Which subatomic particle has a negative charge?
Neutron
Atom
Proton
Electron
4
In general, nonmetals are
liquid at room temperature and have low ductility
dull luster with an ability to conduct heat/electricity
malleable and solid at room temperature
gases at room temperature and are dull in appearance
5
What is the name for what protons, neutrons, and electrons are?
Atoms
Nucleus
Elements
Subatomic Particles
6
What does the Atomic Number represent?
Number of electrons
Number of neutrons
Mass of Atom
Number of protons
7
Carbon Dioxide is formed when two oxygen atoms chemically combine with a carbon atom.
Mixture
Compound
Element
Molecule
8
Which is a difference between compounds and mixtures?
Compounds have a chemical formula
Proportions can change in a mixture, but can't in a compound
Compounds make a new, pure substance and mixtures do not
Compounds bond chemically and mixtures are bound physically
9
An element is...
A collection of substances that can be separated.
Atoms of 2 or more different elements are chemically bonded
The pure form of matter that consists of only 1 type of atom
10
Malleable means...
shininess
to be difficult to manipulate
to be bent or shaped
to be made into a wire
11
What is the symbol for Atomic Mass Unit?
u
a
m
AMU
12
The majority of the elements in the periodic table are?
Metals
Nonmetals
Metalloids
13
Beryllium's symbol is Be and has an atomic number of 4. Which category does it belong?
Metals
Metalloids
Nonmetals
14
ABOUT how many known elements are in the periodic table?
200
120
100
150
15
Who was the scientist/inventor to come up with the idea of The Law of Conservation of Matter?
Antoine Lavoisier
Democritus
Niels Bohr
Albert Einstein
16
Luster means...
To be bent or shaped
To be made into a liquid
Shininess
To be made into a wire
17
A small particle that makes up matter.
Atom
Mixture
Element
Molecule
18
A solid that begins with a mass of 450 g will sublime to give off a gas with a mass of ___ g.
900
450
225
400
19
Ductile means...
To be made into a wire
To be dull
To be bent or shaped
To be shiny
