Fully information about periodicity ​

1.cause they have wings

2.cause they are insects

3.cause they are

thats a little if u want the answer just look it up on google thats what i do haha : )

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.