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- In each of the following sets of elements, which
element shows the least ability to gain or lose
electrons?
a. Cs, Rb, Na
b. Ba, Ca, Be
c. F, Cl, Br
d. O, Te, S

Respuesta :

quasarJose

Answer:

a. Cs, Rb, Na

Explanation:

Electronegativity is the ability of an element to lose or gain electrons. It is expressed as a number that measures the relative tendency with which atoms of the element attract valence electrons in a chemical bond.

  • Across the periodic table, electronegativity increases except for the noble gases
  • It decreases down the group
  • Group 1 elements have the least electronegativity
  • Cs, Rb and Na all belongs to this group
  • They are called the alkali metals
  • They are the most electropositive group on the periodic table.

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