Advertisements
Advertisements
प्रश्न
Write electronic configuration of oxygen, fluorine, sodium, silicon, argon.
Advertisements
उत्तर
| Element | At.Numbers |
Electronic Configuration K L M N |
| 1. Oxygen | 8 | 2 6 |
| 2. Fluorine | 9 | 2 7 |
| 3. Sodium | 11 | 2 8 1 |
| 4. Silicon | 14 | 2 8 4 |
| 5.Argon | 18 | 2 8 8 |
APPEARS IN
संबंधित प्रश्न
Why is it not possible to see an atom with naked eyes?
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
Define an ionic compound.
Write the names of the elements present in the :-
Sulphuric acid
Write the names of `("NH"_4)_2"SO"_4` compounds:
What are orbits or shells ?
Give two examples for each of ionic and covalent bond.
An atom has 13 protons and 14 neutrons.
What is the atomic mass of the atom ?
What is the usual symbol for (a) and electron (b) a proton, and (c) a neutron?
How many times is a proton heavier than an electron?
What is an atom ? How do atoms usually exist ?
Name the gas that.
Turns moist starch iodide paper blue black.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
Which will form positive 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 electronic structure [configuration] of fluorine can be written as 2, 7. In a similar way give the electronic configuration of aluminium
Name the sub-atomic particles.
In all atoms of an element
Define the term ions or radicals.
Write any two observations which support the fact that atoms are divisible.
The graphite refill used is pencil is made of element called ______.
