Question

A: Decreases<br />to<br />Is a metal in period 2 having electronic configuration 2,1. [Beryllium/Lithium/Sodium]<br />3. Is a period having elements from atomic no. 11 to 18. [period - 1/2/3]<br />4.<br />The most reactive halogen from group 17. [chlorine/fluorine/bromine]<br />5. Is the group number of the element whose atomic number is 4. [ group-1/ group - 2/ group -18].<br />10.2 Fill in the blanks from the words A to F given below.<br />[5]<br />B: Increases<br />C: Remains same D: Increases by one<br />E: Electropositive F: Electronegative<br />1. Across a period from left to right in the Modern Periodic Table.<br />No. of electron shells _ ;<br />-; No. of valence electrons _ ;<br />Electronegativity _ ;<br />Character of elements changes from _ to _ .<br />2. Down a group in the Modern Periodic Table.<br />No. of electron shells --_--; No. of valence electrons _ ;<br />Electronegativity _ ;<br />Character of elements changes from _ to _ .​

Answer 1

Ee ka hai re ??? Ha ??????