Question 5 :
Compound formed from the combination of an element X (atomic number 20) with the element Y (atomic number 17) is $X_PY_Q$. Find the value of P+Q.

Question 9 :
Which of the following pairs show reverse properties on moving along a period from left to right and from top to down in a group?

Question 10 :
The maximum number of valence electrons possible for atoms in the second period of the periodic table is :

Question 11 :
What is the dominant intermolecular force or bond that must be overcome in converting liquid <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7f867a3d2442ab8292f28"> to a gas?

Question 14 :
In a multi-electron atom, the energy of a <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7f7a5a3d2442ab8292d24"> -orbital is :

Question 15 :
Atoms react to achieve an&#160;octet in the outermost shell. This is achieved by&#160;:

Question 16 :
What&#160;is the valency of $\displaystyle&#160;{ C }_{ 2 }{ O }_{ 4 }$&#160;ion?

Question 19 :
The energy released when a neutral gaseous atom takes up an electron is called:

Question 20 :
As one moves along a given row in the Periodic Table, ionisation energy

Question 21 :
In a double bond connecting two atoms there is a sharing of:

Question 22 :
If atoms of elements have completely filled outermost shell then their combining capacity or valency is&#160;:

Question 23 :
Observe the following statement<br> I. The physical and chemical properties of elements are periodic functions of their electronic configuration.<br> II. Electronegativity of fluorine is less than the electronegativity of chlorine.<br> III. Electropositive nature decreases from top to bottom in a group.<br> The correct answer is

Question 24 :
The combining capacity of one element with another is known as :