Question 2 of 10 which to elements have similar properties and 8 electrons in their
O A Arsenic and antimony
B Krypton and xenon
Clodine and bromine
A Sodium and potassium

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B : Krypton and Xenon

Explanation :-

Because they are noble gases. They have 8 electrons in their outermost shells and have similar chemical properties.

chemists can use the electron cloud model to assign electrons to different atomic orbitals. atomic orbitals also explain the patterns in the periodic table

explanation:

air quality

poor drinking water

and heavy polution

can lead to poor health