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प्रश्न
How many electrons are required or released by each atom in chlorine to attain the nearest noble gas configuration?
उत्तर
Chlorine requires one electron to complete its octet.
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?
Among the following compounds identify the compound that has all three bonds (ionic, covalent and coordinate bond).
An element with the atomic number 19 will most likely combine chemically with the element whose atomic number is
State the following is a reduction reaction or oxidation reaction.
\[\ce{Fe^2+ - e- -> Fe^3+}\]
Name an element which does not contain neutron.
Write the formula of its (X)
sulphate
nitrate
phosphate
carbonate
hydroxide.
Explain the following:
Carbon-12 and carbon-14 both show similar chemical properties.
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^31_15P}\]
Why are Noble gases inert in nature?
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is a metal.
