Answer:
isotope of the element hydrogen called protium. Protium,
Explanation:
contains a single proton and a single electron, is the simplest atom.
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Answer: Arctic Ocean
Explanation:
Because the Arctic Ocean is colder it is more dense
Answer:
Education has the greatest value. All those activities that are good, useful and valuable from educational point of view are considered as educational values. Ruskin, “Education does not mean teaching people to know that they do not know, it means teaching them to behave as they do not behave”.
Explanation:
The number of electrons in the outermost shell of an atom determines its reactivity.
Biochemical- apart of the second defense system
