Physics, asked by sandippathrabe49, 2 months ago

For which of the following elements the sequence of increasing atomic masses was
inverted in Mendeleev's periodic table?
1..Cobalt (Co) and nickel (Ni)
2..Lithium (Li) and sodium (Na)
3..Beryllium (Be) and magnesium (Mg)
4..Potassium (K) and calcium (Ca)

Answers

Answered by anantajoshi

1

Explanation:

cobalt and nickel is correct answer

hope it helped

Answered by ikanikachattarjee

1

Answer:

1. Co and Ni

Explanation:

Co = 58.9

Ni = 58.7

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