Answer 2. Accept with minor revisions: Also known as conditional acceptance, this decision means that the paper requires minor changes for it to be ...
wer:
Explanation:
Answer:
80g=0.08kg
20cm=0.02m
density=m/v
= 0.08/0.02
=4kg/m^3
it is less than density of water so it floats
Answer is: <span>lead changing to gold.
</span>Transmutation is the conversion of an atom of one element to an atom of another through nuclear reactions. N<span>umber of protons or neutrons in the nucleus is changed. </span>Particle accelerators and nuclear reactors used for creating elements.
Answer:- Oxygen
Explanations:- Elements of same group(family) forms the bonds in almost similar manner. Oxygen and sulfur are the elements of same group and have equal number of valence electrons. So, they form chemical bonds in similar manner as each one needs two more electrons to complete it's octet.
Hydrogen has one valence electron and so it forms only a one single bond.
Nitrogen has 5 valence electrons and it needs three more electrons to complete it's octet and for this it forms three single bonds or one single and one double bond.
Carbon has 4 valence electrons and needs 4 more electrons to complete it's octet. The number of bonds are different for hydrogen, nitrogen and carbon as compared to sulfur.
So, the only and only correct choice is oxygen.
