Name the metalloids in the first twenty elements.

One Line Answer

B (Boron), Si (Silicon).

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Chapter 1 Periodic Table, Periodic Properties and Variations of Properties
lntext Questions | Q 10. (ii) | Page 5

Name the type of elements which have two outermost shell incomplete.

State its position in the periodic table?

Write the number of protons, neutrons and electronic configuration of \[\ce{_19^39K, _15^31P}\]. Also state their position in periodic table.

Name an alkali metal in period 3 and halogen in period 2.

What are the elements.

Which of the following statements about the Modern periodic table is correct?

Find the correlation:

Group 13 to 18 : p block : : ______ : d block

Right or wrong sentence.

To the left of the zig-zag line in the periodic table are the metal elements.

What is the symbol of the element Tungsten?

Compare the radii of two species X and Y. Give reasons for your answer.