Answer:
The number of neutrons is variable, resulting in isotopes, which are different forms of the same atom that vary only in the number of neutrons they possess. Together, the number of protons and the number of neutrons determine an element's mass number.
Answer:
Heat added to substances makes the molucelues move faster and spread out.
Explanation:
No. The mass is released into the air.
Answer:
45th answer is pure and properties 42 is periodictable
Answer:
trees collect energy from sitting in the sun, the interact with their enviorment because they provide oxygen, and they reproduce when their fruit flowers or leaves fall off.
Explanation:
