Advertisements
Advertisements
प्रश्न
Choose the correct option:
The mass number of an atom whose unipositive ion has 10 electrons and 12 neutrons is :
पर्याय
22
23
21
20
उत्तर
23
APPEARS IN
संबंधित प्रश्न
What is an electron? State its relative mass and charge.
Give the symbol and charge of each particle.
Write down the electronic configuration of the following:
(a) `""_13^27"Y"`
(b) `""_17^35"Y"`
Choose the correct option
The number of valence electrons in O2- is :
The electronic configuration of fluoride ion is the same as that of the neon atom. What is the difference between the two?
The electronic configuration of nitrogen is (2, 5). How many electrons in the outer shell of a nitrogen atom are not involved in the formation of a nitrogen molecule?
In the formation of (i) oxygen molecule (ii) carbon tetrachloride molecule, state the following:
- Electronic configuration of nearest inert gas attained.
- How many electrons are shared/transferred in bond formation
- Which type of bonds these compounds form?
- Draw their orbital diagrams.
All non–metals will have ______ electrons in the outermost orbit of their atoms.
In a television tube, Cathode rays are deflected by magnetic fields.
Helium has two electrons in the outermost orbit and so it is chemically inert.