Advertisements
Advertisements
Question
Name the sub-atomic particles.
Advertisements
Solution
Proton, Electron, Neutrons.
APPEARS IN
RELATED QUESTIONS
Write the names of the elements present in the :-
Sulphuric acid
Write the names of `"Na"_3"PO"_4` compounds :
Define: Chemical bond
What does an atom consist of ? Explain.
Fill in the blank
An _______ is electrically neutral.
Is it possible to see atoms these days ? Explain your answer.
The electronic configuration of an element Z is 2, 8, 8.
(a) What is the atomic number of the element?
(b) State whether element Z is a metal or a non-metal.
(c) What type of ion (if any) will be formed by an atom of element Z? Why?
(d) What is special about the outermost electron shell of the atom of this element?
(e) Give the name and symbol of element Z.
(f) Name the group of elements to which Z belongs.
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)
Give scientific reason.
All the mass of an atom is concentrated in the nucleus.
Define the following term:
Atom
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
What will be the charge present of the molecule XY after chemical combination?
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.
Select the correct answer to the statement given below:
The smallest particle of a substance – capable of independent existence and which retains the characteristics of the substance.
The smallest particle of matter that can exist by itself is ______.
The basic unit of matter is ______.
State true or false. If false, correct the statement.
An atom is electrically neutral.
1 mole of Gold and Silver contain same number of atoms.
Write any two observations which support the fact that atoms are divisible.
Lead is also known as plumbum.
What is the fundamental particle of an element?
