What is the defention of an compound?
Two or more different atmos chemically bonded together.
Two or more different atoms not chemically bonded together.
What is the defenition of a Mixture?
Two or more different atoms chemically bonded together.
Two or more different atoms not chemically bonded togther.
What charge does a Neutron have?
0
+1
-1
What charge does a Proton have?
What charge does a electron have?
How many electrons does the first shell hold?
2
4
8
How many electrons does the second, third and fourth shell hold?
Which of these form negatively charges atoms?
Metals
Non-metals
Which of these form postively charged ions?