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प्रश्न
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.
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उत्तर
(a) Y + 3e-→ Y3-
(b) 3X +Y2 → X3Y2
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संबंधित प्रश्न
Five atoms are labelled from A to E.
| Atoms | Mass No. | Atomic No. |
| A | 40 | 20 |
| B | 19 | 9 |
| C | 7 | 3 |
| D | 16 | 8 |
| E | 14 | 7 |
(a) Which one of these atoms:
(i) contains 7 protons,
(ii) has an electronic configuration 2, 7?
(b) Write down the formula of the compound formed between C and D.
(c) predict which are: (i) metals, (ii) non-metals?
In term of electron transfer, define
Reduction
Explain the following briefly:
Helium does not form He2 molecule
Name an element which does not contain neutron.
How do atoms attain noble gas configurations?
Give the orbital diagram of the following:
Hydrogen chloride
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^39_19K}\]
Spot the error/correct the wrong statement:
In the formation of compounds, the inner shell electrons of an atom involved in bonding.
How many atoms of each kind are present in the following molecule:
water
The one which is composed of all the three kinds of bond.[ionic, covalent and coordinate bond]
