lesson 19 group 7 part 3

Question 1

the negative electron is attracted to the positive charge of the what

Answer 1

nucleus

Question 2

as we go down group 7 the elements get what

Answer 2

less reactive

Question 3

chlorine gains an electron less easily than fluorine because

Answer 3

there is a greater distance between the outer energy and the nucleus with chlorine than fluorine

Question 4

chlorine also gains an electron less easily than fluorine because of
(2nd reason)

Answer 4

in chlorine the outer energy level is shielded from the positive charge of the nucleus by internal electrons

Question 5

as we go down group 7, what makes them less reactive

Answer 5

the increased shielding and distance

Question 6

a more reactive halogen, can displace a less reactive halogen via what

Answer 6

via an aqueous solution of its salt