Advertisements
Advertisements
Question
Explain
Octet rule for the formation of sodium chloride
Advertisements
Solution
Elements tend to combine with one another to attain the stable electronic configuration of the nearest inert gas.
Sodium chloride
The sodium atom has 1 electron in the valence shell which it donates to the chlorine atom with 7 electrons in the valence shell to attain the stable electronic configuration of the nearest inert gas, i.e. 8 electrons in the valence shell. This is known as the octet rule. These elements combine to form sodium chloride.
APPEARS IN
RELATED QUESTIONS
Define a chemical bond.
In term of electron transfer, define
Reduction
How many atoms of each kind are present in the following molecule:
Calcium oxide
What is an α (alpha) particle?
Explain fractional atomic mass. What is the fractional mass of chlorine?
Give a reason
Physical properties of isotopes are different.
Complete the following table relating to the atomic structure of some elements.
|
Element Symbol |
Atomic Number |
Mass Number |
Numbers of neutrons |
Number of Electrons |
Number of Protons |
|
Li |
3 |
6 |
|
|
|
|
Cl |
17 |
|
20 |
|
|
|
Na |
|
|
12 |
|
11 |
|
Al |
|
27 |
|
|
13 |
|
S |
|
32 |
16 |
|
|
Give the orbital diagram of the following:
Magnesium chloride
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^39_19K}\]
Elements A, B and C have atomic number 17, 19 and 10 respectively.
Write down the formula of the compound formed by two of the above elements.
