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