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Atoms
Elements
Periodic Table
Miscellaneous
Compounds and Mixtures
100
A particle in an atom with a positive charge.
What is proton?
100
The element C.
What is carbon?
100
This number tells you the number of protons in an atom's nucleus.
What is atomic number?
100
Anything that has mass and takes up space.
What is matter?
100
Water is an example of a ___________.
What is compound?
200
____________ are small particles that make up most types of matter on Earth.
What are atoms?
200
Isotopes of an element contain different numbers of ____________________.
What is neutrons?
200
Most elements found on the left side of the periodic table are __________.
What is metals?
200
J.J. Thompson's experiments with cathode rays led to the discovery of the _________.
What is electron?
200
Fruit salad is an example of a _____________ mixture.
What is heterogeneous?
300
Subatomic particles with a negative charge.
What is electrons?
300
Elements that have characteristics of both metals and nonmetals.
What is metalloids?
300
Elements on the right side of the periodic table.
What is nonmetals?
300
light beam, heat, thoughts, etc. are examples of things that are ________ ___________.
What is not matter?
300
Air is an example of a ________________ mixture.
What is homogeneous?
400
Ernest Rutherford's experiments showed that most of an atom is made up of _________ ___________.
What is empty space?
400
A property not associated with metals is ___________.
What is brittleness?
400
This number reflects the number of neutrons and protons in the nucleus of an atom.
What is mass number?
400
During Chadwick's experiments streams of electrons were unaffected by an ___________ ___________
What is electric field?
400
The number of atoms in this compounds chemical formula C6 H12 O6.
What is 24 atoms?
500
A subatomic particle with a neutral charge.
What is neutron?
500
The chemical symbol for hydrogen is _________.
What is H?
500
Elements in the center of the periodic table.
What is metalloids?
500
Developed a model called the atomic theory of matter.
Who is John Dalton?
500
Another name for a homogeneous mixture.
What is a solution?