Advertisements
Advertisements
प्रश्न
K: Potassium:: C: ______.
Advertisements
उत्तर
K: Potassium:: C: Carbon.
APPEARS IN
संबंधित प्रश्न
TRUE \ FALSE
Elements having a tendency to accept electrons are called metals
Define:- Atom
Write the names of `"Ca"("NO"_3)_2` compounds :
Write the names of `"FeS"` compounds :
What does the word ‘atom’ mean?
Name the three subatomic particles present in an atom.
What value has been given to the mass of this reference atom ?
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)
Draw diagrams representing the atomic structures of the following:
- Sodium atom
- Chlorine ion
- Carbon atom
- Oxygen ion
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form negative ion?
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?
The smaller particles found in the atom is called ______.
Define the following term with an example.
Non-metal
In all atoms of an element
Define the term ions or radicals.
Atoms of different elements having ______ mass numbers, but ______ atomic numbers are called isobars.
Dalton’s atomic theory successfully explained
(i) Law of conservation of mass
(ii) Law of constant composition
(iii) Law of radioactivity
(iv) Law of multiple proportions
The most abundant type of atom is the universe is ______.
What is the fundamental particle of an element?
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 ______.
