Chemistry, asked by vvishalravi, 8 months ago

the atomic number an element present in the last member of 7th period

Answers

Answered by raotd

Answer:

An extended periodic table theorises about chemical elements beyond those currently known in the periodic table and proven up through oganesson, which completes the seventh period (row) in the periodic table at atomic number (Z) 118. As of 2020

Explanation:

Answered by arpithasatish192000

Answer: 118

Explanation: last member of 6th period is radon .its atomic number is 86. 7th period has the subshells - 7s,5f,6d,7p which is completly filled 'i.e; 32 electrons. ∴ there would be about 32 elements. the last member would be 86 +32=118

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