Chemistry Review Grade 9 Science
20 Questions
| Total Attempts: 3918
Review of subatomic particle and ion and isotopes families and density
Questions and Answers
- 1.this subatomic particle has a positive charge
- A.
Proton
- B.
Neutron
- C.
Electron
- D.
Andreon
- E.
Vladon
- 2.This subatomic particle has the smallest mass
- A.
Proton
- B.
Neutron
- C.
Electron
- D.
Emitron
- E.
Stefatron
- 3.This subatomic particle has a neutral charge
- A.
Proton
- B.
Neutron
- C.
Electron
- D.
Madetron
- E.
Maron
- 4.This subatomic particle has a negative charge
- A.
Jakotron
- B.
Dilisitron
- C.
Proton
- D.
Neutron
- E.
Electron
- 5.A charged atom is called
- A.
A yron
- B.
An ion
- C.
A chargon
- D.
An isotope
- E.
A lucon
- 6.How neutrons does carbon-14 have?
- A.
6
- B.
7
- C.
8
- D.
14
- E.
0
- 7.How many neutrons does He-3 have?
- A.
1
- B.
2
- C.
3
- D.
4
- E.
0
- 8.How many protons does C-13 have?
- A.
13
- B.
6
- C.
7
- D.
8
- E.
0
- 9.What charge do lithium ions have?
- A.
1-
- B.
1+
- C.
2-
- D.
2+
- E.
0
- 10.What charge do oxygen ions have?
- A.
1+
- B.
1-
- C.
2+
- D.
2-
- E.
8+
- 11.Why do atoms form ions
- A.
To attract other ions
- B.
To get charged
- C.
To have a full (stable) outer shell
- D.
To form attractions
- E.
Nobody knows
- 12.How many electrons are there on the outer shell of a neutral potassium atom
- A.
1
- B.
2
- C.
7
- D.
19
- E.
39
- 13.The atomic number is always the same as the number of
- A.
Protons +neutrons
- B.
Protons
- C.
Neutrons
- D.
Electrons
- E.
Joeyons
- 14.The atomic mass is the same as the number of
- A.
Protons + neutrons
- B.
Protons
- C.
Neutrons
- D.
Electrons
- E.
Evans
- 15.This family does not react.
- 16.As you move from left to right in a period the atomic radius
- 17.As you move down the halogens, the reactivity
- 18.An object with a greater density than the liquid it is placed in will
- 19.As you go down a column in the periodic table, the number of shells
- 20.Which sentence is wrttien in past passive?
- A.
I washed the beaker
- B.
The beaker was washed
- C.
The beaker should be washed
- D.
We was washing the beaker
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