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Asked: December 18, 2020In: Class 10 Science

Elements A has atomic no.16: (a) Name of the elements. (b) Physical state. (c)Compounds with hydrogen (d) Metal or non-metal (e) Nature and formula with oxides.

NCERT Solutions for Class 10 Science Chapter 5 Important Board Questions Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Question Questions No: 2

Chemistry 10 Sir

Asked: December 18, 2020In: Class 10 Science

Write down five major differences between Mendeleev periodic table and Modern periodic table.

NCERT Solutions for Class 10 Science Chapter 5 Important Board Questions Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Question Questions No: 1

Chemistry 10 Sir

Asked: December 18, 2020In: Class 10 Science

What are metalloids? Write two names.

NCERT Solutions for Class 10 Science Chapter 5 Important Board Questions Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Question Questions No: 11

Chemistry 10 Sir

Asked: December 18, 2020In: Class 10 Science

(a) How do we calculate the valency of an element from its electronic configuration? (b) How does the valency vary in a period?

NCERT Solutions for Class 10 Science Chapter 5 Important Board Questions Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Question Questions No: 9

Chemistry 10 Sir

Asked: December 18, 2020In: Class 10 Science

Four elements P,Q,R and S have atomic number 12,13,14 and 15 respectively. Answer the following: (a) what is the valency of Q? (b) Classify these elements as metals and no-metals. (c) Which of these elements will form the most basic oxide?

NCERT Solutions for Class 10 Science Chapter 5 Important Board Questions Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Question Questions No: 8

Elements A has atomic no.16: (a) Name of the elements. (b) Physical state. (c)Compounds with hydrogen (d) Metal or non-metal (e) Nature and formula with oxides.

Write down five major differences between Mendeleev periodic table and Modern periodic table.

What are metalloids? Write two names.

(a) How do we calculate the valency of an element from its electronic configuration? (b) How does the valency vary in a period?

Four elements P,Q,R and S have atomic number 12,13,14 and 15 respectively. Answer the following: (a) what is the valency of Q? (b) Classify these elements as metals and no-metals. (c) Which of these elements will form the most basic oxide?

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