On moving from left to right across a period in the periodic table,the metallic character:

The most electropositive element possesses the electronic configuration

$Mg$ and $Li$ are similar in their properties due to

Among the following,the most basic oxide is

Given below are two statements:
Statement $I$ : Both metal and non-metal exist in $p$ and $d-$block elements.
Statement $II$ : Non-metals have higher ionisation enthalpy and higher electronegativity than the metals.
In the light of the above statements,choose the most appropriate answer from the option given below:

Which of the following oxides is the most acidic?