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प्रश्न
Name the sub-atomic particles.
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उत्तर
Proton, Electron, Neutrons.
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संबंधित प्रश्न
WRITE SHORT ANSWER
Define an ionic compound.
Name two particles found inside the nucleus. What are they collectively called ?
State Dalton’s atomic theory.
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the charge on the particle ?
Write the full form of IUPAC.
An atom of element E contains 3 protons, 3 electrons and 4 neutrons :
(a) What is its atomic number?
(b) What is its mass number?
(c) Write the electronic configuration of the element E.
(d) State whether element E is a metal or non-metal. Why?
(e) What type of ion, cation or anion, will be formed by an atom of element E? Why
(f) Write the symbol of the ion formed by an atom of element E.
(g) What could element X be?
For the symbols H, D and T, write the subatomic particles (protons, neutrons and electrons) found in each one of them.
Electron, proton, neutron are the types of ______ in an atom.
Draw the basic structure of an atom representing its –
- Subatomic particles
- Nucleus
- Orbits or shells.
A radical take part – unsplit in a chemical reaction and retains its identity in reactions.
With reference to the radical –
- ammonium
- bisulphate
- carbonate
state the group of atoms present in each radical.
The smaller particles found in the atom is called ______.
Assertion: An atom is electrically neutral.
Reason: Atoms have equal number of protons and electrons.
An atom of an element has no electron. Will that atom have any mass or not? Can an atom exist without electron? If so then give example.
Define the following term with an example.
Non-metal
An element is composed of ______ atoms.
Atoms of different elements having ______ mass numbers, but ______ atomic numbers are called isobars.
Atoms of different elements having the same number of ______ are called isotones.
What are the 3 most abundant atoms on the earth?
The ______ are combination of atoms of various elements or the same element.
