Period Table Flashcards
1
Q
No. Of periods
A
7
2
Q
No. Of groups
A
18
3
Q
What is principal quantum no. ?
A
No. Of orbits
4
Q
No. Of Elements in 1st period
A
2
5
Q
Position of lanthanoids
A
58-71
6
Q
Position of actinoids
A
91-103
7
Q
Peaks occupied in lother meyer curves
A
Alkali metals
8
Q
Ascending mid points in lm curve
A
Halogens
9
Q
Descending mid points in lm curves
A
Alkaline metals
10
Q
De chan courtis arranged elements in
A
Atomic weights
11
Q
Metal with maximum electron affinity
A
Gold
12
Q
Mendeleev arrange elements in order with
A
Atomic mass
13
Q
Moseleys law
A
Root frequency is directly proportional to atomic no.
14
Q
Moseleys equations
A
Root frequency is equal to az-ab
15
Q
Max melting point
A
Tungsten
