The mass number of an atom is equal to

Weighted average of masses of all isotopes of an element

The atomic mass of an atom is equal to

Weighted average of masses of all isotopes of an element

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1Negatively charged subatomic particles.
1. AProton
2. BNeutron
3. CElectron
4. DNucleus
2Subatomic particle with no charge.
1. AProton
2. BNeutron
3. CElectron
4. DNucleus
3Positively charged subatomic particle.
1. AProton
2. BNeutron
3. CElectron
4. DNucleus
4Central dense core of an atom responsible for its mass.
1. AProton
2. BNeutron
3. CElectron
4. DNucleus
5Philosopher who was among the first to suggest the existence of atoms.
1. ABohr
2. BRutherford
3. CDalton
4. DDemocritus
6The mass of an electron is equal to the mass of a neutron.
1. AVerdadero
2. BFalso
7Rutherford’s gold foil experiment proved that atoms are mostly empty space with a dense, positively charged nucleus.
1. AVerdadero
2. BFalso
8The mass number of an atom is equal to
1. AWeighted average of masses of all isotopes of an element
2. B Protons plus Neutrons
3. CNumber of Neutrons
4. DNumber of Protons
9The atomic mass of an atom is equal to
1. AWeighted average of masses of all isotopes of an element
2. BProtons plus Neutrons
3. CNumber of Neutrons
4. DNumber of Protons
10An isotope of neon has a mass number of 22. How many neutrons in this isotope?
1. A22
2. B20
3. C12
4. D10

Descripción: 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
Autor: F Kolias
Idioma: English
Visitas: 1.467
Etiquetas: proton electron neutron nucleus 10th grade
Valoración: 4,0 de 5 · 4 valoraciones
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