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प्रश्न
Name the type of elements which have one electron short of octet.
एक शब्द/वाक्यांश उत्तर
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उत्तर
Halogens
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पाठ 1: Periodic Table, Periodic Properties and Variations of Properties - lntext Questions [पृष्ठ ५]
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संबंधित प्रश्न
State modern periodic law.
How were the positions of cobalt and nickel resolved in the modern periodic table?
On which side of the periodic table will you find metals?
Explain why, the noble gases are placed in a separate group.
Explain why all the elements of a group have similar chemical properties.
Explain why all the elements of a period have different chemical properties.
What is the main characteristic of the last elements in the periods of the periodic table? What is the general name of such elements?
The electronic configuration of an element T is 2, 8, 8, 1.
- What is the group number of T?
- What is the period number of T?
- How many valence electrons are there in an atom of T?
- What is the valency of T?
- Is it a metal or a non-metal?
Right or wrong sentence.
The modern periodic table shows the molecular masses of the elements in each frame.
- 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.
