509 Atoms Flashcards
1
Q
Atoms combine to form?
A
Molecules
2
Q
What are cells made up of?
A
Molesules
3
Q
Tissues are made up of?
A
Cells
4
Q
Organs are made up of?
A
Tissues
5
Q
What is matter?
A
anything that occupies space and has mass
6
Q
what state does matter come in?
A
Solid, liquid, gaseous
7
Q
How can matte changed?
A
Physically - to solid, liquid, gas
chemically - changes alter the chemical composition of substance
8
Q
What is the structure of an atom?
A
made up of
+ protons - in the nucleus
0 neutrons - in the nucleus
- Electrons - valence shell - orbits around the nucleus
9
Q
how do you find the atomic number of an atom?
A
Protons + neutons = atomic number
eg: sodium = Na 23
11 protons
12 neutons
10
Q
Na =
A
Sodium
11
Q
Ca =
A
Calcium
12
Q
H =
A
Hydrogen
13
Q
O =
A
Oxygen
14
Q
CH
A
Chloride
15
Q
K =
A
Potassium
