Answer:
X₂O₃ , Y₂O
Explanation:
Valency of an element tells how well that element can form compounds with other atoms.
It sometimes, is also determined by the number of hydrogen atoms that it combines with.
Oxygen usually has a valency of 2, or oxidation state of -2.
That means oxygen will need 2 more electrons in it's outer shell to form a configuration of a noble gas(octet configuration).
The oxidation state of an atom in a molecule gives the number of valence electrons it has gained or lost.
Assuming both X and Y are less electronegative than oxygen, X has a valency of 3 and OS of +3.
While forming a neutral compound, we need no net charge on the compound. In X₂O₃,
total charge on X is 2 x (OS of X)= 2 x ( +3) = +6
total charge on O is 3 x (OS of O)= 3 x ( -2) = -6
Net charge is 0.
Similarly, in Y₂O
total charge on Y is 2 x (OS of Y)= 2 x ( +1) = +2
total charge on O is 1 x (OS of O)= 1 x ( -2) = -2
Net charge is 0.
When the cows eat the grass
Answer:
Could you post another better looking question because I cannot understand this.
Explanation:
Answer:
1s2 2s2 2p6 3s2 3p6 3d6
Explanation:
We are required to determine the electron configuration of Fe²⁺
We need to know that;
Atomic number of Iron (Fe) is 26
- Therefore, electron configuration of Iron (Fe) atom is [Ar] 3d64s2 or 1s2 2s2 2p6 3s2 3p6 4s2 3d6
- Fe²⁺ is a cation that is formed when a an atom of Fe loses two electrons
- Therefore;
Fe²⁺ will have 24 electrons
- Hence, the atomic configuration of Fe²⁺ is given by 1s2 2s2 2p6 3s2 3p6 3d6 since the two electrons are removed from the 4s2.
Thus, electron configuration of Fe²⁺ is 1s2 2s2 2p6 3s2 3p6 3d6
Explanation:
elements are carbons and hydrogen