ScienceTeacher

Talash

Asked: December 5, 2020In: Class 10 Science

Give reasons: Carbonate and sulphide ores are usually converted into oxides during the process of extraction.

NCERT Solution for Class Tenth Science Chapter 3 Metals and Non-metals CBSE NCERT Book Session-2022-2023 Exercises Questions Page No-21 Questions No-12 Part: d

Talash

Asked: December 5, 2020In: Class 10 Science

Give reasons: Aluminium is a highly reactive metal, yet it is used to make utensils for cooking.

NCERT Solution for Class Tenth Science Chapter 3 Metals and Non-metals CBSE NCERT Book Session-2022-2023 Exercises Questions Page No-21 Questions No-12 Part: c

Talash

Asked: December 5, 2020In: Class 10 Science

Give reasons: Platinum, gold and silver are used to make jewellery.

NCERT Solution for Class Tenth Science Chapter 3 Metals and Non-metals CBSE NCERT Book Session-2022-2023 Exercises Questions Page No-21 Questions No-12 Part: a

Yashi mukherjee

Asked: October 21, 2020In: Class 10

Which element has

NCERT Solution for Class 10 Science Chapter 5 Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-91 Questions No-3 (a) two shells, both of which are completely filled with electrons? (b) the ...

Yashi mukherjee

Asked: October 21, 2020In: Class 10

What property do all elements in the same column of the Periodic Table as boron have in common ?

NCERT Solution for Class 10 Science Chapter 5 Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-91 Questions No-4 Part 1

Yashi mukherjee

Asked: October 21, 2020In: Class 10

What property do all elements in the same column of the Periodic Table as fluorine have in common?

NCERT Solution for Class 10 Science Chapter 5 Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-91 Questions No- 4 Part-2

Yashi mukherjee

Asked: October 21, 2020In: Class 10

An atom has electronic configuration 2, 8, 7. What is the atomic number of this element?

NCERT Solution for Class 10 Science Chapter 5 Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-91 Questions No-5

Deepak joshi

Asked: October 21, 2020In: Class 10

How does the electronic configuration of an atom relate to its position in the Modern Periodic Table?

NCERT Solution for Class 10 Science Chapter 5 Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-92 Questions No-8

Deepak joshi

Asked: October 21, 2020In: Class 10

In the Modern Periodic Table, calcium (atomic number 20) is surrounded by elements with atomic numbers 12, 19, 21 and 38. Which of these have physical and chemical properties resembling calcium?

NCERT Solution for Class 10 Science Chapter 5 Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-92 Questions No-9

Chaitan Singh

Asked: October 21, 2020In: Class 10

What were the limitations of Döbereiner’s classification?

NCERT Solution for Class 10 Science Chapter 5 Periodic Classification of Elements NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-81 Questions No-2

ScienceTeacher

Give reasons: Carbonate and sulphide ores are usually converted into oxides during the process of extraction.

Give reasons: Aluminium is a highly reactive metal, yet it is used to make utensils for cooking.

Give reasons: Platinum, gold and silver are used to make jewellery.

Which element has

What property do all elements in the same column of the Periodic Table as boron have in common ?

What property do all elements in the same column of the Periodic Table as fluorine have in common?

An atom has electronic configuration 2, 8, 7. What is the atomic number of this element?

How does the electronic configuration of an atom relate to its position in the Modern Periodic Table?

In the Modern Periodic Table, calcium (atomic number 20) is surrounded by elements with atomic numbers 12, 19, 21 and 38. Which of these have physical and chemical properties resembling calcium?

What were the limitations of Döbereiner’s classification?

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