Advertisements
Advertisements
प्रश्न
Write the names of `"Na"_3"PO"_4` compounds :
उत्तर
`"Na"_3"PO"_4` - Sodium Phosphate
APPEARS IN
संबंधित प्रश्न
Write the names of the elements present in the :-
Sulphuric acid
What is the maximum number of electrons present in:
1. first shell
2. second shell
3. third shell and
4. fourth shell
Define: Covalent bond
Give two examples for each of ionic and covalent bond.
How did Neils Bohr visualise the atom ?
An atom has 13 protons and 14 neutrons.
How many electrons would be present in this atom ?
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
Does the particle have an excess of electrons or a deficiency of electrons ?
A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.
What is the charge on the particle ?
Fill in the blank
An _______ is electrically neutral.
Write the relation between nanometre and metre.
Why is it not possible to see an atom even with the most powerful microscope ?
What value has been given to the mass of this reference atom ?
How many atoms are there in exactly 12 g of carbon-12 element ? (C = 12 u)
Select the correct answer to the statement given below:
The basic unit of matter is not capable of independent existence.
Define – Atom.
Define the following term with an example.
Non-metal
Which of the following statements made by Dalton has not undergone any change?
In all atoms of an element
Give the salient features of “Modern atomic theory”.
A small block slides down on a smooth inclined plane, starting from rest at time t = 0. Let Sn be the distance travelled by the block in the interval t = n – 1 to t = n. Then, the ratio `S_n/(S_(n + 1))` is ______.
