Advertisements
Advertisements
प्रश्न
Write the names of `("NH"_4)_2"SO"_4` compounds:
Advertisements
उत्तर
`("NH"_4)_2"SO"_4` - Ammonium sulphate
APPEARS IN
संबंधित प्रश्न
Why is it not possible to see an atom with naked eyes?
ANSWER IN DETAIL
How are isobars different from isotopes ?
Write the names of the elements present in the:-
Glucose
Write the names of `"Na"_3"PO"_4` compounds :
Give two examples for each of ionic and covalent bond.
What are the building blocks of matter ?
Is it possible to see atoms these days ? Explain your answer.
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?
How many atoms are there in exactly 12 g of carbon-12 element ? (C = 12 u)
Which has more atoms, 50 g of aluminium or 50 g of iron ? Illustrate your answer with the help of calculations.
(Atomic masses : Al = 27 u ; Fe = 25 u)
The electron shell ______ is nearest to the nucleus.
Deduce from the datum provided.
| Datum | To deduce |
| \[\ce{_11^23Na}\] | Neutron number |
| \[\ce{_6^14C}\] | Mass number |
| \[\ce{_17^37 Cl}\] | Proton number |
What is the contribution of the following in atomic structure?
Maharshi Kanada
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form positive ion?
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 ______.
State true or false. If false, correct the statement.
The basic unit of an element is molecule.
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.
The volume occupied by 1 mole of a diatomic gas at S.T.P is ______
