Unit 1 Flashcards
1
Q
Define isotope
A
Atoms of the same element that have different numbers of neutrons therefore different masses
2
Q
In scientific notation what does a positive exponent show?
A
How many times the coefficient has to be multiplied by 10
3
Q
In scientific notation what does a negative export say?
A
How many times the coefficient has to be divided by 10
4
Q
How do you divide SN
A
Divide the coefficients and subtract the exponent in the denominator from the numerator
5
Q
How do you multiply SN?
A
Multiply he coefficients and add the exponents
6
Q
How do add SN?
A
The decimal points must be aligned meaning th coefficients must be the same
7
Q
Define absolute zero
A
The point at which all atoms stop moving
8
Q
Define diatomic molecule
A
A molecule that contains 2 atoms
