Answer:
H2O
Explanation:
water is made up of 1 hydrogen snd 2 oxygen
Answer:
Combustibility is a measure of how easily a substance bursts into flame, through fire or combustion. This is an important property to consider when a substance is used for construction or is being stored. It is also important in processes that produce combustible substances as by product
Answer:
In our modern periodic table, the horizontal rows are known as periods , and the elements belonging to same period have same numbers of shells .
for example :
lithium, beryllium , boron , carbon , nitrogen , oxygen, fluorine and neon are in same period and have total 2 shells .
14 uranium atoms in pure uranium
Answer:
1s22s22p32d6
Explanation:
is a reasonable electron configuration
