147424
The constituents of atomic nuclei are believed to be
1 Neutrons and protons
2 Protons only
3 Electrons and protons
4 Electrons and protons and neutrons
Explanation:
A The atomic nucleus is composed of protons and neutrons. Proton and neutrons have approximately the same mass but proton carry positive charge and neutrons carry no charge.
AIPMT- 1991
NUCLEAR PHYSICS
147426
Alpha particles are
1 2 free protons
2 helium atoms
3 singly ionized helium atoms
4 doubly ionised helium atoms
Explanation:
D Alpha particles also called $\alpha$ rays or alpha radiation consists of two protons and two neutrons bound together into a particle identical to a helium -4 nucleus. These are doubly-charged helium atoms.
AIPMT- 1999
NUCLEAR PHYSICS
147429
The mass number of a nucleus is
1 Sometimes equal to its atomic number
2 Sometimes less than and sometimes more than its atomic number
3 Always less than its atomic number
4 Always more than its atomic number
Explanation:
A Mass number of an element is the total number of protons and neutrons present inside the atomic nucleus of the element. It is represented by A. It is different for different elements. Mass number of a nucleus is sometimes equal to its atomic number.
AIPMT- 2003
NUCLEAR PHYSICS
147433
Which of the following particles are baryons?
1 Nucleons and hyperons
2 Nucleons and leptons
3 Hyperons and leptons
4 Hyperons and bosons
Explanation:
A Baryons are subatomic particles that are made up of three quarks. Nucleons are particles that are made up of three quarks and include protons and neutrons. Hyperons are also baryons that are made up of three quarks but are heavier than nucleons.
147424
The constituents of atomic nuclei are believed to be
1 Neutrons and protons
2 Protons only
3 Electrons and protons
4 Electrons and protons and neutrons
Explanation:
A The atomic nucleus is composed of protons and neutrons. Proton and neutrons have approximately the same mass but proton carry positive charge and neutrons carry no charge.
AIPMT- 1991
NUCLEAR PHYSICS
147426
Alpha particles are
1 2 free protons
2 helium atoms
3 singly ionized helium atoms
4 doubly ionised helium atoms
Explanation:
D Alpha particles also called $\alpha$ rays or alpha radiation consists of two protons and two neutrons bound together into a particle identical to a helium -4 nucleus. These are doubly-charged helium atoms.
AIPMT- 1999
NUCLEAR PHYSICS
147429
The mass number of a nucleus is
1 Sometimes equal to its atomic number
2 Sometimes less than and sometimes more than its atomic number
3 Always less than its atomic number
4 Always more than its atomic number
Explanation:
A Mass number of an element is the total number of protons and neutrons present inside the atomic nucleus of the element. It is represented by A. It is different for different elements. Mass number of a nucleus is sometimes equal to its atomic number.
AIPMT- 2003
NUCLEAR PHYSICS
147433
Which of the following particles are baryons?
1 Nucleons and hyperons
2 Nucleons and leptons
3 Hyperons and leptons
4 Hyperons and bosons
Explanation:
A Baryons are subatomic particles that are made up of three quarks. Nucleons are particles that are made up of three quarks and include protons and neutrons. Hyperons are also baryons that are made up of three quarks but are heavier than nucleons.
147424
The constituents of atomic nuclei are believed to be
1 Neutrons and protons
2 Protons only
3 Electrons and protons
4 Electrons and protons and neutrons
Explanation:
A The atomic nucleus is composed of protons and neutrons. Proton and neutrons have approximately the same mass but proton carry positive charge and neutrons carry no charge.
AIPMT- 1991
NUCLEAR PHYSICS
147426
Alpha particles are
1 2 free protons
2 helium atoms
3 singly ionized helium atoms
4 doubly ionised helium atoms
Explanation:
D Alpha particles also called $\alpha$ rays or alpha radiation consists of two protons and two neutrons bound together into a particle identical to a helium -4 nucleus. These are doubly-charged helium atoms.
AIPMT- 1999
NUCLEAR PHYSICS
147429
The mass number of a nucleus is
1 Sometimes equal to its atomic number
2 Sometimes less than and sometimes more than its atomic number
3 Always less than its atomic number
4 Always more than its atomic number
Explanation:
A Mass number of an element is the total number of protons and neutrons present inside the atomic nucleus of the element. It is represented by A. It is different for different elements. Mass number of a nucleus is sometimes equal to its atomic number.
AIPMT- 2003
NUCLEAR PHYSICS
147433
Which of the following particles are baryons?
1 Nucleons and hyperons
2 Nucleons and leptons
3 Hyperons and leptons
4 Hyperons and bosons
Explanation:
A Baryons are subatomic particles that are made up of three quarks. Nucleons are particles that are made up of three quarks and include protons and neutrons. Hyperons are also baryons that are made up of three quarks but are heavier than nucleons.
147424
The constituents of atomic nuclei are believed to be
1 Neutrons and protons
2 Protons only
3 Electrons and protons
4 Electrons and protons and neutrons
Explanation:
A The atomic nucleus is composed of protons and neutrons. Proton and neutrons have approximately the same mass but proton carry positive charge and neutrons carry no charge.
AIPMT- 1991
NUCLEAR PHYSICS
147426
Alpha particles are
1 2 free protons
2 helium atoms
3 singly ionized helium atoms
4 doubly ionised helium atoms
Explanation:
D Alpha particles also called $\alpha$ rays or alpha radiation consists of two protons and two neutrons bound together into a particle identical to a helium -4 nucleus. These are doubly-charged helium atoms.
AIPMT- 1999
NUCLEAR PHYSICS
147429
The mass number of a nucleus is
1 Sometimes equal to its atomic number
2 Sometimes less than and sometimes more than its atomic number
3 Always less than its atomic number
4 Always more than its atomic number
Explanation:
A Mass number of an element is the total number of protons and neutrons present inside the atomic nucleus of the element. It is represented by A. It is different for different elements. Mass number of a nucleus is sometimes equal to its atomic number.
AIPMT- 2003
NUCLEAR PHYSICS
147433
Which of the following particles are baryons?
1 Nucleons and hyperons
2 Nucleons and leptons
3 Hyperons and leptons
4 Hyperons and bosons
Explanation:
A Baryons are subatomic particles that are made up of three quarks. Nucleons are particles that are made up of three quarks and include protons and neutrons. Hyperons are also baryons that are made up of three quarks but are heavier than nucleons.
