E,C & M
Periodic Table
Elements
Conservation of Mass
Vocabulary
100
Has definite chemical and physical properties.
What is matter?
100
Contains information about the different elements that make up all the solids, liquids, and gases.
What is the periodic table?
100
Origin of some element names.
What is the Greek or Latin names?
100
Atoms are not ______ or ______ during a chemical reaction.
What is created or destroyed?
100
When two or more pure chemicals form a new compound or compounds.
What is a chemical reaction?
200
A combination of two or more pure substances that are not chemically combined.
What is a mixture?
200
The atoms of these make up the millions of substances in all matter.
What is elements?
200
Number of protons in the nucleus is equal to this number.
What is the atomic number?
200
The atoms are ________ during a chemical reaction.
What is rearranged?
200
To bubble or fizz, possibly hiss or foam.
What is effervescent?
300
A pure substance that cannot be separated by physical or chemical means.
What is an element?
300
Read from left to right, adding one proton and one electron from one element to the next.
What is the rows (or periods) of the periodic table?
300
K is the symbol for this element.
What is potassium?
300
There must be an _____ number of atoms on each side of the equation.
What is equal?
300
The substances that are present before the chemical change takes place.
What is reactants?
400
A pure substance composed of two or more different elements joined be chemical bonds.
What is a compound?
400
Read top to bottom and share similar chemical and physical properties.
What is the columns (or groups) of the periodic table?
400
Total mass of particles in the nucleus.
What is the atomic mass?
400
The term for the number that could be added in front of a chemical formula to balance an equation. ____ N + ____ H → ____ NH
What is coefficient?
400
Capable of being dissolved into another substance.
What is soluble?
500
A mixture that is well mixed.
What is homogeneous?
500
An element from the noble gas group.
What is ?
500
The number of electrons for an element are equal to this number.
What is the number of protons or atomic number?
500
You cannot add or change _______.
What is subscripts?
500
The end result of a chemical reaction.
What is products?
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