The identity of the "unknown element", "Y", is magnesium (Mg).
Answer:
Chemical reactions involve the rearrangement of electrons and Isotopes of the same element behave differently in a nuclear reaction.
Answer: it would be similair everyone get half of thier Dads DNA and half of the moms DNA I hope this helps
Answer:
Fossil is the name that is used for the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock.
Explanation:
Fossils are the remaining parts of the organism's body which lives in ancient times and now they are extinct. Extinct means they are no longer the part of our earth or there is no specie of their kind. Fossil is only be found when the dead bodies of animals buried quickly so the chances of their complete decomposition is less and people will get it during digging after long time.
Answer:
hailstones --> Hail is a type of precipitation, or water in the atmosphere. Hail is formed when drops of water freeze together in the cold upper regions of thunderstorm clouds. These chunks of ice are called hailstones. Most hailstones measure between 5 millimeters and 15 centimeters in diameter, and can be round or jagged.
i am sorry i can not answer the oxygen question because it is not all there.
