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प्रश्न
The element that would form anion by gaining electrons in a chemical reaction is ______.
पर्याय
potassium
calcium
fluorine
iron
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उत्तर
The element that would form anion by gaining electrons in a chemical reaction is Fluorine
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संबंधित प्रश्न
Define a chemical bond.
(i) How many atoms of each kind are present in the following molecules: calcium oxide, chlorine, water, carbon tetrachloride?
(ii) How many electrons are required for their octet structure?
Element X is a metal with a valency 2; Y is a non-metal with a valency 3.
(a) Write an equation to show how Y forms as ion
(b) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
Match the atomic numbers 4, 14, 8, 15 and 19 with each of the following:
- A solid non-metal of valency 3.
- A gas of valency 2.
- A metal of valency 1.
- A non-metal of valency 4.
Give reason
`""_17^35"CI"` and `""_17^37"CI"` do not differ in their chemical reactions.
Give the orbital diagram of the following:
Methane
Explain the following:
Carbon-12 and carbon-14 both show similar chemical properties.
Choose the odd one out and write the reason:
Complete the following table:
| Atoms | Atomic number | Electron distribution | |
| 1. | O | 8 | ______ |
| 2. | N | ______ | ______ |
| 3. | ______ | 17 | ______ |
| 4. | ______ | ______ | 2,8,2 |
How many atoms of each kind are present in the following molecule:
water
