Question

Any two members of period 2 of the periodic table and similarity in them.​

Answer 1

Answer:

The second period contains the elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon.

Similarities between them

• For all elements in period 2, as the atomic number increases, the atomic radius of the elements decreases, the electronegativity increases, and the ionization energy increases.
• All period 2 elements completely obey the Madelung rule; in period 2, lithium and beryllium fill the 2s subshell, and boron, carbon, nitrogen, oxygen, fluorine, and neon fill the 2p subshell

Answer 2

Answer:

A period 2 element is one of the chemical elements in the second row (or period) of the periodic table of the chemical elements. ...

The second period contains the elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, and neon

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