Element, Compound, or Mixture?
States of Matter
Air
Atoms
Periodic Table
100
Made of identical atoms.
What is an element?
100
This state of matter has a definite shape.
What is a solid?
100
The percentage of oxygen in air.
What is 21%?
100
The smallest part of an element that still retains all of the properties of an element is called this.
What is an atom?
100
This is the element symbol for oxygen.
What is O?
200
Two or more elements chemically combined.
What is a compound?
200
This state of matter does not have a definite volume.
What is a gas?
200
The formula for oxygen in the air.
What is O2?
200
The particle in the nucleus that is electronically neutral.
What is a neutron?
200
If Oxygen has 8 protons, how many electrons does it have?
What is 8?
300
Two or more substances mixed evenly together in a uniform fashion.
What is a homogeneous mixture?
300
In this state of matter, particles are the most compact.
What is a solid?
300
The major component of air.
What is nitrogen?
300
T/F: John Dalton stated that matter is destroyed during nuclear processes.
What is false?
300
Another name for a horizontal row on the periodic table.
What is a period?
400
Water
What is a compound?
400
In this state of matter, particles move the fastest (not including plasma).
What is a gas?
400
The number of binds between two oxygen molecules.
What is 2?
400
In a neutral atom, the number of electrons always equals this.
What is the number of protons?
400
Another name for a vertical column on the periodic table.
What is a group or family?
500
Gold
What is an element?
500
The temperature at which a solid changes to a liquid.
What is melting point?
500
The percent of argon in clean, dry air.
What is 0.94%?
500
These two particle are located in the nucleus of an atom.
What are protons and neutrons?
500
The number of neutrons in one atom of silver.
What is 61?
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