The following neutral atoms each have 8 places for electrons in their outermost shells. which atom will tend to lose rather than gain 1 or more valence electrons when forming an ion? a. li with 1 valence electron b. o with 6 valence electrons c. ne with 8 valence electrons d. f with 7 valence electrons

a.Li with 1 valence electron

Explanation:

For this it is necessary to see the electronegativity of this atoms. The electronegativity is the force or tendency that has an atom to attract electrons, so the atom who has the lower value of electronegativity is the one that will tend to lose rather than gain electrons.

The electronegativity of these atoms is:

Li – 0.98

O – 3.44

F – 3.98

Ne is a noble gas so has no tendency to gain nor lose electrons

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).