Chemistry, asked by acpd75, 5 months ago

what is the duplet rule

Answers

Answered by shrudikaa
0

Explanation:

the duplet rule, that states that some elements can be stable with two electrons in their shell. Hydrogen and helium are special cases that do not follow the octet rule but the duplet rule. ... They are stable in a duplet state instead of an octet state

Answered by diyakhrz12109
0

Answer:

There is another rule, called the duplet rule, that states that some elements can be stable with two electrons in their shell. Hydrogen and helium are special cases that do not follow the octet rule but the duplet rule. ... They are stable in a duplet state instead of an octet state.

Explanation:

the word duplet is related to “doublet” and refers to a pair or to the number two.

Noble gases (or inert gases) such as neon (Ne) and argon (Ar) have eight electrons in their valence (outermost) shells, which gives them a stable electronic configuration. Other atoms have a tendency to combine in order to have  8  electrons in their valence shells, and to arrive at the same electronic configuration as a noble gas. This is the octet rule.

However there are elements like lithium and hydrogen that do not reach eight electrons in their outermost valence shell. The outermost shell of helium for example is filled with only two electrons. Hydrogen and lithium become stable by acquiring the electronic configuration of the nearest inert gas, which is helium. This is the duplet (or duet) rule.

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