The number of hybrid orbitals and atomic orbitals involved in BF3 respectively are ……………
A) 2, 2
B) 4, 4
C) 3/1
D) 3,3
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If the three elements X,Y and Z form a triad and atomic weights of X and Z are 9 and 40 respectively then the atomic weight of an element y is _______
Correct Answer - 24.5
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How is an atom of an element ‘X’ having atomic number ‘Z’ and atomic mass number ‘A’ represented?
An atom of an element ‘X’ having atomic number ‘Z’ and atomic mass number ‘A’ is represented as : \(^A_ZX\)
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How many orbitals make the N-shell? What is the subshell wise distribution of orbitals in the N-shell?
For N-shell principal quantum number n = 4 ∴ Total number of orbitals in N-shell = n2 = 42 = 16. The total number of subshells in N-shell = n = 4. The four...
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As we go from left to right in a period the atomic number and atomic radius
C) atomic number increases and atomic radius decreases
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Enlist the characteristic features of hybrid orbitals.
Characteristic features of hybrid orbitals : Number of hybrid orbitals formed is exactly the same as the participating atomic orbitals. They have same energy and shape. Hybrid orbitals are oriented in space in such...
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i. According to MO theory, the formation of molecular orbitals from atomic orbitals is expressed in terms of Linear
i. True ii. True iii. False Interference of electron waves of combining atoms can be constructive or destructive. iv. True v. True
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What are the conditions required for linear combination of atomic orbitals to form molecular orbitals?
The following conditions are required for the linear combination of atomic orbitals (LCAO) to form molecular orbitals : i. The combining atomic orbitals must have comparable energies. So, Is orbitals of one...
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Match the following. Set – I P) Atomic number (Z) Q) Atomic mass number
D) P – S, Q – U, R – T
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In a senior secondary school,80 students play football or hockey.The number that play football is 5 more than twice the number that play hockey.If 15 students play both games and every student in the school plays at least one game,find (i)the number of students that play football (ii)the number of students that play football but not hockey (iii)the number of students that play hockey but not football.
I thought F or H = 80 is giving by n(F u H) = n(F) + n(H) - n(F n H)
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