Trends in MPT

Q.

Number of valence electrons in Chlorine ion are: (a) 16 (b) 8 (c) 17 (d) 18

1. $16$

2. 8

3. 17

4. 18

Q.

Find the number of valence electrons in Sulphur by writing their electronic arrangement in their atoms.

Q.

Which one of the following is an acidic oxide?

1. 

2. 

3. 

4. CaO

Q.

The outermost shell of an atom is known as its _________ and the electrons in it are known as ________.

Q.

Which one of the following elements has the least ionisation energy?

1. Li

2. Na

3. K

4. Cs

Q.

The electron affinities of N, O, S and Cl are :

1. N < O < S < Cl

2. O < N < Cl < S

3. O = Cl < N = S

4. O < S < Cl < N.

Q.

_____ electrons are located in the outermost shell of an atom.

Q.

Describe the trend of ionization potential down the group in the periodic table.

Q.

The energy required to remove an electron from an isolated gaseous atom is called __ energy.

Q.

Three elements P, Q and R have atomic numbers 4, 12 and 20 respectively.

Are these elements metals or non-metals?

Q. According to modern periodic law, the properties of elements are a periodic function of their

1. atomic masses
2. atomic volumes
3. densities
4. atomic numbers

Q.

If the elements Na, Mg, and Al were to lose electrons to attain the nearest inert gas configuration, which ions do they convert to what is the relationship between these ions.

Q.

The first ionization potential of Na, Mg, Al and Si are in the order:

1. Na < Mg > Al < Si

2. Na >Mg>Si>Al

3. Mg > Na > Al > Si

4. Na > Al > Mg > Si.

Q.

The correct increasing order of first ionisation energy is:

1. Na < K < Al < Mg

2. K < Na < Mg < Al

3. K < Na < Al < Mg

4. K < Mg < Al < Na.

Q. Assertion :Ferrous ion is a divalent ion. Reason: Iron atom looses two electrons to carry two positive charges

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Assertion is incorrect but Reason is correct

Q.

how many atoms of sodium and chloride are required to make a molecule of salt

Q.

Which amongst the following elements have the lowest number of electrons in the valence shell ?

1. Oxygen

2. Chlorine

3. Nitrogen

4. Boron

Q.

Maximum number of valence electrons possible in an atom are

1. 5

2. 6

3. 7

4. 8

Q.

The correct order of second ionization potential of carbon, nitrogen, oxygen and fluorine is:-

1. O > N > F > C

2. O > F > N > C

3. F > O > N > C.

4. C > N > O > F

Q.

Which one of the following elements has the least ionisation energy?

1. Na

2. K

3. Cs

4. Li

Q.

The element with least ionization energy in group 1 is Caesium.

1. False

2. True

Q. Periodic properties of elements refer to the properties recurring at regular intervals.

1. True
2. False