Advertisements
Advertisements
प्रश्न
Write the names of `"FeS"` compounds :
Advertisements
उत्तर
`"FeS"` - Iron sulphide
APPEARS IN
संबंधित प्रश्न
Tick the most appropriate answer.
Who discovered that radioactive rays are given out by uranium?
- Henri Becquerel
- Marie Curie
- Pierre Curie
- Schmidt
WRITE SHORT ANSWER
Name three inert gases.
Write the names of the elements present in the :-
Sulphuric acid
Write the names of the elements present in the:-
Glucose
Fill in the blank:
Atoms are _____
What does an atom consist of ? Explain.
Define: An Atom:
Fill in the blank
If an atom gains an electron, it is called an _______
One nm is equal to :
Define the following term:
Atom
Match the pairs.
| Group 'A' | Group 'B' |
| a. Proton | i. Negatively charged |
| b. Electron | ii. Neutral |
| c. Neutron | iii. Positively charged |
Deduce from the datum provided.
| Datum | To deduce |
| \[\ce{_11^23Na}\] | Neutron number |
| \[\ce{_6^14C}\] | Mass number |
| \[\ce{_17^37 Cl}\] | Proton number |
Compare:
Chlorine atom and chloride ion, with respect to
Atomic structure
Electrical state
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which element will lose electron?
The smallest particle of matter that can exist by itself is ______.
Assertion: An atom is electrically neutral.
Reason: Atoms have equal number of protons and electrons.
Name the sub-atomic particles.
1 mole of Gold and Silver contain same number of atoms.
An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.
