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Question
Name the following:
The shell closest to the nucleus of an atom
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Solution 1
K
Solution 2
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
RELATED QUESTIONS
Give electron dot diagram of the following:
methane
Match the column A with Column B.
|
Column A |
Column B |
|
(i) Sodium chloride (ii) Ammonium ion (iii) Carbon tetrachloride |
Covalent bond Ionic bond Covalent and coordinate bond |
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.
Draw orbit structure diagram of sodium chloride (NaCl).
Identify the following reaction as either oxidation or reduction:
K - e- → K+
Complete the table give below.
| Element |
Atomic number |
Electron distribution | Valence electrons | Lewis dot structure |
| Lithium | 3 | 1s22s1 | ||
| Boron | 5 | 1s22s22p1 | ||
| Oxygen | 8 | 1s22s22p4 |
Why are Noble gases inert in nature?
The valency of noble gases is ______.
Choose the odd one out and write the reason:
Elements A, B and C have atomic number 17, 19 and 10 respectively.
State which one is a metal.
