What are Electrons and Protons?
Electron- Electrons are negatively charged subatomic particles revolving around the nucleus in orbits and have a mass of approximately 0amu (atomic mass unit) and have a charge of -1.
Proton- Protons are positively charged subatomic particles forming part of the nucleus of an atom and determines the atomic number of an element. It weighs 1amu (atomic mass unit).
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- The nucleons are(a) protons and electrons(b) neutrons and electrons(c) protons and neutrons (d) none of these.
- Explain the discovery of electrons, protons, and neutrons.
- Compare the properties of electrons, protons, and neutrons.
- What is the relationship between an atom containing 11 protons, 11 electrons and 11 neutrons, and another atom containing 11 protons, 11 electrons and 12 neutrons?
- State the location of electrons, protons and neutrons in an atom.
- What are electrons?
- What is the name of a particle which contains 10 electrons, 11 protons and 12 neutrons?
- Compare the radii of two species X and Y. Give reasons for your answer.(a) X has 12 protons and 12 electrons(b) Y has 12 protons and 10 electrons
- The atomic number of sodium is 11 and its mass number is 23. It has(a) 11 neutrons and 12 protons (b) 12 protons and 11 electrons(c) 11 electrons and 12 neutrons (d) 12 electrons and 11 neutrons.
- Which of the following statement is always correct?(a) an atom has equal number of electrons and protons (b) an atom has equal number of electrons and neutrons (c) an atom has equal number of protons and neutrons (d) an atom has equal number of electrons, protons and neutrons
- What are valence electrons?
- Name the particle which has 18 electrons, 18 neutrons and 17 protons in it.
- An atom Y contains 10 electrons and 10 neutrons, then what will be the no. of protons in atom Y?
- Why are protons present in the center and are they not pulled outside by the electrons as both are oppositely charged with the same unit of charge?
- What name is given to those atoms which contain the same number of protons and electrons but different number of neutrons?
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