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Chapter 3
Atoms
19
Chemistry
10th Grade
02/06/2007

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Cards

Term
What is Matter?
Definition
The material that makes up a substance.
Term
What is Pure Substance?
Definition
A type of matter that has a fixed or definite compostition
Term
What is a Element?
Definition
A oure substance that is composed of only one type of atom
Term
What is a compound?
Definition
A pure substance with two or more different elements.
Term
What is a Molecule?
Definition
Two or more atoms bonded together
Term
What is a Isotope?
Definition
Same protons different neutrons
Term
The ionization energy for atoms is decreased as the period number?
Definition
Increases
Term
The ionization energy for atoms is increased as the group number?
Definition
Increases
Term
Proton?
Definition
Positve?
Term
Nuetron?
Definition
Neutral
Term
Electron
Definition
Negative
Term
The atomic number is equal to the number of?
Definition
Protons
Term
The atomix mass number=number of____ plus number of____?
Definition
Proton, Nuetrons
Term
Cretinism and Hypothyrodism can be caused by insufficent amount of? in your diet
Definition
Iodine
Term
To move and electron to a higher energy level than it would normally ocuupy you must add?
Definition
Energy
Term
Shell 1
Shell 2
Shell 3
Shell 4
Definition
2,8,18,32
Term
Shell 1
Shell 2
Shell 3
Shell 4
Definition
2,8,18,32
Term
A horizontal row in the periodic table is called a?
Definition
period
Term
A vertical row in the periodic table is called a?
Definition
group
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