In Isoelectronic species, ionic radii decreases as atomic number increases.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313172
Which is the correct order of atomic radius?
1 Metalic radius > van der Waal's radius > covalent radius
2 Van der Waal's radius > covalent radius \(>\) metallic radius
3 Van der Waal's radius > metallic radius > covalent radius
4 Covalent radius > metallic radius > van der Waal's radius
Explanation:
Since, the internuclear distance between the atoms held by van der Waal's forces are larger than that between covalently bonded or metallic bonded atoms, van der Waal's radius is larger than metallic and covalent radius. In a covalent bond, the electron pairs are strongly attracted by the nuclei of two atoms due to which covalent radii is smaller than metallic radii. The correct order is van der Waals' radius > metalic radius \(>\) covalent radius
AIIMS - 2015
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313173
Atomic radius decreases in a period, but after halogens, the atomic radius suddenly increases. Thus, inert gases has almost highest radius in a period. The explanation for such an increase is
1 Inert gases has most stable configuration
2 Inert gases do not take part in bonding
3 Van der Waal’s radius is reported in case of inert gases
4 None of these
Explanation:
Conceptual Questions
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313174
The order of increasing sizes of atomic radii among the elements O, S, Se and As is :
1 As < S < O < Se
2 Se < S < As < O
3 O < S < As < Se
4 O < S< Se < As
Explanation:
On moving down in a group atomic radii increases due to successive addition of extra shell hence O < S < Se Further As is in group 15 having one less electron in its p-orbital hence have higher atomic radii than group 16 elements i.e., O < S < Se < As
In Isoelectronic species, ionic radii decreases as atomic number increases.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313172
Which is the correct order of atomic radius?
1 Metalic radius > van der Waal's radius > covalent radius
2 Van der Waal's radius > covalent radius \(>\) metallic radius
3 Van der Waal's radius > metallic radius > covalent radius
4 Covalent radius > metallic radius > van der Waal's radius
Explanation:
Since, the internuclear distance between the atoms held by van der Waal's forces are larger than that between covalently bonded or metallic bonded atoms, van der Waal's radius is larger than metallic and covalent radius. In a covalent bond, the electron pairs are strongly attracted by the nuclei of two atoms due to which covalent radii is smaller than metallic radii. The correct order is van der Waals' radius > metalic radius \(>\) covalent radius
AIIMS - 2015
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313173
Atomic radius decreases in a period, but after halogens, the atomic radius suddenly increases. Thus, inert gases has almost highest radius in a period. The explanation for such an increase is
1 Inert gases has most stable configuration
2 Inert gases do not take part in bonding
3 Van der Waal’s radius is reported in case of inert gases
4 None of these
Explanation:
Conceptual Questions
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313174
The order of increasing sizes of atomic radii among the elements O, S, Se and As is :
1 As < S < O < Se
2 Se < S < As < O
3 O < S < As < Se
4 O < S< Se < As
Explanation:
On moving down in a group atomic radii increases due to successive addition of extra shell hence O < S < Se Further As is in group 15 having one less electron in its p-orbital hence have higher atomic radii than group 16 elements i.e., O < S < Se < As
In Isoelectronic species, ionic radii decreases as atomic number increases.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313172
Which is the correct order of atomic radius?
1 Metalic radius > van der Waal's radius > covalent radius
2 Van der Waal's radius > covalent radius \(>\) metallic radius
3 Van der Waal's radius > metallic radius > covalent radius
4 Covalent radius > metallic radius > van der Waal's radius
Explanation:
Since, the internuclear distance between the atoms held by van der Waal's forces are larger than that between covalently bonded or metallic bonded atoms, van der Waal's radius is larger than metallic and covalent radius. In a covalent bond, the electron pairs are strongly attracted by the nuclei of two atoms due to which covalent radii is smaller than metallic radii. The correct order is van der Waals' radius > metalic radius \(>\) covalent radius
AIIMS - 2015
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313173
Atomic radius decreases in a period, but after halogens, the atomic radius suddenly increases. Thus, inert gases has almost highest radius in a period. The explanation for such an increase is
1 Inert gases has most stable configuration
2 Inert gases do not take part in bonding
3 Van der Waal’s radius is reported in case of inert gases
4 None of these
Explanation:
Conceptual Questions
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313174
The order of increasing sizes of atomic radii among the elements O, S, Se and As is :
1 As < S < O < Se
2 Se < S < As < O
3 O < S < As < Se
4 O < S< Se < As
Explanation:
On moving down in a group atomic radii increases due to successive addition of extra shell hence O < S < Se Further As is in group 15 having one less electron in its p-orbital hence have higher atomic radii than group 16 elements i.e., O < S < Se < As
In Isoelectronic species, ionic radii decreases as atomic number increases.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313172
Which is the correct order of atomic radius?
1 Metalic radius > van der Waal's radius > covalent radius
2 Van der Waal's radius > covalent radius \(>\) metallic radius
3 Van der Waal's radius > metallic radius > covalent radius
4 Covalent radius > metallic radius > van der Waal's radius
Explanation:
Since, the internuclear distance between the atoms held by van der Waal's forces are larger than that between covalently bonded or metallic bonded atoms, van der Waal's radius is larger than metallic and covalent radius. In a covalent bond, the electron pairs are strongly attracted by the nuclei of two atoms due to which covalent radii is smaller than metallic radii. The correct order is van der Waals' radius > metalic radius \(>\) covalent radius
AIIMS - 2015
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313173
Atomic radius decreases in a period, but after halogens, the atomic radius suddenly increases. Thus, inert gases has almost highest radius in a period. The explanation for such an increase is
1 Inert gases has most stable configuration
2 Inert gases do not take part in bonding
3 Van der Waal’s radius is reported in case of inert gases
4 None of these
Explanation:
Conceptual Questions
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313174
The order of increasing sizes of atomic radii among the elements O, S, Se and As is :
1 As < S < O < Se
2 Se < S < As < O
3 O < S < As < Se
4 O < S< Se < As
Explanation:
On moving down in a group atomic radii increases due to successive addition of extra shell hence O < S < Se Further As is in group 15 having one less electron in its p-orbital hence have higher atomic radii than group 16 elements i.e., O < S < Se < As
In Isoelectronic species, ionic radii decreases as atomic number increases.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313172
Which is the correct order of atomic radius?
1 Metalic radius > van der Waal's radius > covalent radius
2 Van der Waal's radius > covalent radius \(>\) metallic radius
3 Van der Waal's radius > metallic radius > covalent radius
4 Covalent radius > metallic radius > van der Waal's radius
Explanation:
Since, the internuclear distance between the atoms held by van der Waal's forces are larger than that between covalently bonded or metallic bonded atoms, van der Waal's radius is larger than metallic and covalent radius. In a covalent bond, the electron pairs are strongly attracted by the nuclei of two atoms due to which covalent radii is smaller than metallic radii. The correct order is van der Waals' radius > metalic radius \(>\) covalent radius
AIIMS - 2015
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313173
Atomic radius decreases in a period, but after halogens, the atomic radius suddenly increases. Thus, inert gases has almost highest radius in a period. The explanation for such an increase is
1 Inert gases has most stable configuration
2 Inert gases do not take part in bonding
3 Van der Waal’s radius is reported in case of inert gases
4 None of these
Explanation:
Conceptual Questions
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
313174
The order of increasing sizes of atomic radii among the elements O, S, Se and As is :
1 As < S < O < Se
2 Se < S < As < O
3 O < S < As < Se
4 O < S< Se < As
Explanation:
On moving down in a group atomic radii increases due to successive addition of extra shell hence O < S < Se Further As is in group 15 having one less electron in its p-orbital hence have higher atomic radii than group 16 elements i.e., O < S < Se < As
