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प्रश्न
Name an alkali metal in period 3 and halogen in period 2.
उत्तर १
SOL: Na and F
उत्तर २
Period III alkali metal is sodium. Fluorine is a halogen found in period II.
संबंधित प्रश्न
The position of three elements A, B and C in the Periodic Table are shown below –
|
Group 16
|
Group 17
|
|
−
|
−
|
|
−
|
A
|
|
−
|
−
|
|
B
|
C
|
(a) State whether A is a metal or non-metal.
(b) State whether C is more reactive or less reactive than A.
(c) Will C be larger or smaller in size than B?
(d) Which type of ion, cation or anion, will be formed by element A?
What is meant by a group, in a periodic table?
What is a period in a periodic table?
What is the number of elements in the 1st period?
Answer the following question.
How it can be proved that the basic structure of the Modern Periodic Table is based on the electronic configuration of atoms of different elements?
Give the symbol and valency of the following element and radical.
Nitrogen [Nitride]
What are the elements.
Noble gases are placed in the ______ group in the modern periodic table.
An element ‘M' has 50% of the electrons filled in the 3rd shell as in the 2nd shell. The atomic number of ‘M’ is ______.
Answer the following in respect of element \[\ce{_16^32S}\].
Give its electronic configuration.
