3330742
Question 1
Question
Negatively charged subatomic particles.
Answer
-
Proton
-
Neutron
-
Electron
-
Nucleus
Question 2
Question
Subatomic particle with no charge.
Answer
-
Proton
-
Neutron
-
Electron
-
Nucleus
Question 3
Question
Positively charged subatomic particle.
Answer
-
Proton
-
Neutron
-
Electron
-
Nucleus
Question 4
Question
Central dense core of an atom responsible for its mass.
Answer
-
Proton
-
Neutron
-
Electron
-
Nucleus
Question 5
Question
Philosopher who was among the first to suggest the existence of atoms.
Answer
-
Bohr
-
Rutherford
-
Dalton
-
Democritus
Question 6
Question
The mass of an electron is equal to the mass of a neutron.
Answer
- True
- False
Question 7
Question
Rutherford’s gold foil experiment proved that atoms are mostly empty space with a dense, positively charged nucleus.
Answer
- True
- False
Question 8
Question
The mass number of an atom is equal to
Answer
-
Weighted average of masses of all isotopes of an element
-
Protons plus Neutrons
-
Number of Neutrons
-
Number of Protons
Question 9
Question
The atomic mass of an atom is equal to
Answer
-
Weighted average of masses of all isotopes of an element
-
Protons plus Neutrons
-
Number of Neutrons
-
Number of Protons
Question 10
Question
An isotope of neon has a mass number of 22. How many neutrons in this isotope?
Answer
-
22
-
20
-
12
-
10
Question 11
Question
An isotope of lead has a mass number of 206. How many protons in this isotope?
Answer
-
82
-
124
Question 12
Question
Calculate the atomic mass of an atom with the following isotope data:
Mass : Abundance
36.00 : 75.77%
37.00 ; 24.23%
Answer
-
36.14
-
36.68
-
36.48
-
36.24
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