Atoms, Elements And Compounds and Inside the Atom Flashcards
0
Q
Elements are substances that…
A
Cannot be broken into smaller substances by chemical reaction.
1
Q
Compounds can be broken down into….
A
Simpler elements or it’s element
2
Q
Proton charge?
A
+ve
3
Q
Neutron charge?
A
Neutral
4
Q
Electron charge?
A
-ve
5
Q
An atom has equal numbers of protons and electrons, what happens to the charge?
A
The charges cancel out, making it neutral
6
Q
How many electrons can the first shell hold?
A
Two
7
Q
How many electrons can the second shell hold?
A
Eight
8
Q
Elements with the same number of outer electrons have…
A
Similar properties
9
Q
What are the subatomic particles found in an atom?
A
Neutrons, electrons and protons
10
Q
Proton mass
A
1
11
Q
Neutron mass
A
1
12
Q
Electron mass
A
Almost 0
13
Q
The sum of the protons and neutrons is…
A
The mass number
14
Q
Lowest energy shell?
A
First shell
