Atomic Structure

F Kolias
Quiz by F Kolias, updated more than 1 year ago
F Kolias
Created by F Kolias over 5 years ago
1344
3

Description

Explain what makes elements and isotopes different from one another Calculate the number of neutrons in an atom Calculate the atomic mass of an element Explain why chemists use the periodic table

Resource summary

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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