<span>As a solid element melts, the atoms become <u>more separated</u> and they have <u>less</u> attraction for one another.
When a solid element starts melting, it means that it is using up a lot of energy it has stored. And when there is a lot of energy being used up, its particles are vibrating fast, and becoming more and more separated. So obviously, if these atoms are far from each other, they aren't going to attract.</span>
Answer:In total, these relationships are often called EXPLOITATIVE INTERACTIONS, and ... think animal eating plants (it is predator-prey) plants are defensive, they can be ... those between herbivore and plant, between predator and prey, and between ... skin hardened on outside. roses have thorns, those thorns and armor always ..
Explanation:
We call these reactive elements, becausethese atoms really like to follow the buddysystem and form bonds with other atoms.Noble gases, however, don't have thisproblem. Their outer shells are filled to the max, so they don't need to bond or react with any other atoms.
Answer:
The two elements are POLONIUM and RADIUM.
Explanation:
Maria Curie is a French physicist and chemist, though she was of a Polish naturals. She was the first woman to receive a Noble Price which she earned for conducting leading and head way research on radioactivity. She discovered the theory of radioactivity; also the techniques isolating radioactive isotopes. These helped her and her husband discover Polium and Radium.
After 1 half life its half the element
after 2 hl its quarter remaining
after 3 hl its half the quarter which is 1 eighth
after 3 half lifes