Definitions Flashcards
1
Q
What is atomic mass?
A
The sum of the number of protons and neutrons
2
Q
What scientist developed a simplified model of an atom
A
Niels Bohr
3
Q
What happens in an ionic bond?
A
Positive and negatively charged ions attract each other
4
Q
When atoms share electrons it is what type of bond?
A
Covalent bond
5
Q
What kind of reaction occurs when a compound is broken down into simpler compounds
A
Decomposition
6
Q
The compound H2 CO3 has how many atoms of carbon in it?
A
One
7
Q
What can you use to determine the concentration of acids or bases in a solution?
A
The pH scale
8
Q
What changed color when exposed to acid or base solutions?
A
Indicator
