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प्रश्न
What is the general name of the last elements of the Periodic Table?
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उत्तर
General name of the last elements of the Periodic Table is Inert Gases.
संबंधित प्रश्न
Which element has two shells, both of which are completely filled with electrons?
What is the number of elements is 1st period the modern periodic table?
An element X belongs to 3rd period and group 2 of the periodic table. State:
(a) number of valence electrons
(b) valency
(c) metal or non-metal
(d) name of the element
Give the symbol and valency of the following element and radical.
Sodium
What are the elements.
What are the periods in a periodic table?
Mendeleev's periodic table : atomic mass : : Modern periodic table : _______
The modern periodic table has 1 to 7 periods.
Identify gas A in the following experiment.
- Write the electronic configuration of element X, given by its symbol as under: \[\ce{^40_20 X}\]
- Determine its position in the modem periodic table.
- What is the nature of its oxide?
- Name one other element of its group.
