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प्रश्न
Name the following:
The shell closest to the nucleus of an atom
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उत्तर १
K
उत्तर २
The shell nearest to the nucleus i.e. shell 1 or K can have a maximum of 2 electrons. It has a minimum amount of energy
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?
(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?
In term of electron transfer, define Oxidation
Fill in the blanks.
The electrovalent bond or ionic bond is called as _____ bond
Fill in the blank.
___________ single covalent bonds are formed between the carbon and chlorine atoms.
How many electrons are required or released by each atom in calcium oxide to attain the nearest noble gas configuration?
How does the Modern atomic theory contradict and correlate with Dalton's atomic theory?
Give a reason
Physical properties of isotopes are different.
Give reason
Argon does not react.
Potassium (at No.19) and chlorine (at No.17) react to form a compound. Explain the formation of the compound on the basis of oxidation.
