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प्रश्न
In which block of the modern periodic table are the nonmetals found?
पर्याय
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p-block
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उत्तर
In p-block of the modern periodic table are the nonmetals found.
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संबंधित प्रश्न
State whether the following statement is true of false:
The elements in a group have consecutive atomic numbers.
Rewrite the following statement after correction, if necessary:
Periods are the horizontal rows of elements.
Why do we classify elements?
Find the neutral atom in the periodic table which has the same number of electrons as K+ and Cl−. What is this number?
Answer the following question.
Write the name, symbol, and electronic configuration of an element X whose atomic number is 11.
Give a reason why elements need to be properly classified.
How did the early chemists classify elements?
Why was this basis of classification discarded for future classification of elements?
The number of periods and groups in the periodic table are ______
______ group contains the member of the halogen family.
Match the following
| 1. | Galvanisation | Noble gas elements |
| 2. | Calcination | Coating with Zn |
| 3. | Redox reaction | Silver-tin amalgam |
| 4. | Dental filling | Alumino thermic process |
| 5. | Group 18 elements | Heating in the absence of air |
What property forms the basis of identification?
Consider the following elements 20Ca, 8Or 18Ar, 16S, 4Be, 2He
Which of the above elements would you expect to be in group 16 of the Periodic Table?
Which of the following hydroxides is most basic?
An element with the atomic number 40 is placed in the period.
Identify and name the metals out of the following elements whose electronic configurations are given below.
- 2, 8, 2
- 2, 8, 1
- 2, 8, 7
- 2, 1
Relate the names of the following scientists with the statements given below.
Arranged elements into groups containing three elements each.
How are elements grouped into various families in the periodic table?
The atomic number of an element 'X' is 11.
- Write the electronic configuration of X and find its valency.
- Write the formula and nature of its oxide.
Justify. Element 'X' forms an oxide with the formula X2O3 which is a solid with a high melting point. ‘X’ would most likely be placed in the group of the Periodic Table as Al.
