Chemistry, asked by abhinashssahu, 1 year ago

according to atomic structure what determines which element will be the first and which will be the last element in period

Answers

Answered by Adarshthakur11

according to atomic structure number of protons decides which element will be first and which element will be last in period

Adarshthakur11: i dont think so

Adarshthakur11: the element with the lowest no of protons will be placed first

abhinashssahu: I want perfect answer

Adarshthakur11: what else do u want brother

abhinashssahu: I want the element name

Adarshthakur11: u mean u want an example

abhinashssahu: yes

Adarshthakur11: ok

Adarshthakur11: in 2nd period lithium is the first element it 3 protons and then is beryllium which has 4 protons and the last element is neon which has the most number of protons in the period so it is placed at the last

Adarshthakur11: r u satisfied???

Answered by ratribhattacharrya3

Hey mate here is your answer: the electronic configuration of an element determines its position in modern periodic table. The element with 1 valence electron is the first while the element with 8 valence electrons is placed in the 18th group of a period.

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