ions and valency

Question 1

what does inert mean

Answer 1

chemically inactive

Question 2

what are the valencies of noble gases

Answer 2

all of them are 8 except for helium which is 2

Question 3

why are noble gases inert

Answer 3

because of their valencies (which are full)

Question 4

the valence electrons interact during a ________

Answer 4

chemical reaction

Question 5

what happens to the electrons during a reaction

Answer 5

electrons are shared or exchanged during a chemical reaction

Question 6

if flurine have 7 valence electrons what happens

Answer 6

it gains 1 electron and changes into an ion with -charge

Question 7

what are ions

Answer 7

atoms that have gained or lost electrons

Question 8

what ion does an atom that lost electrons make

Answer 8

a positive ion

Question 9

what ion does an atom that gained electrons make

Answer 9

a negative ion

Question 10

what ions does metal elements tend to form

Answer 10

positive ions (loose electrons)

Question 11

what ions does non-metal elements tend to form

Answer 11

negative ions (gains electrons)