Home
Class 9
CHEMISTRY
What are elements ?...

What are elements ?

Text Solution

Verified by Experts

Elements are substance that cannot be chemically broken down into simpler substances. So an element is made up of only one kind of atoms.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • IS MATTER AROUND US PURE

    CPC CAMBRIDGE PUBLICATION|Exercise UNIT TEST|6 Videos

  • IS MATTER AROUND US PURE

    CPC CAMBRIDGE PUBLICATION|Exercise MATCH THE FOLLOWING :-|1 Videos

  • ATOMS AND MOLECULES

    CPC CAMBRIDGE PUBLICATION|Exercise UNITE TEST ANSWER THE FOLLOWING|4 Videos

  • MATTER IN OUR SURROUNDINGS

    CPC CAMBRIDGE PUBLICATION|Exercise UNIT TEST (Answer the following)|4 Videos

Similar Questions

Explore conceptually related problems

What are the elements obtained from sea water source?

What are radiocative elements ? Cite a few exmple .

What is the main difference among the isotopes of the same element ? (AS_(1))

What are representative elements?

If a matrix has 5 elements what are the possilbe orders it can have?

What are inner-transition elements ? Decide which of the following atomic numbers are the numbers of the inner-transition elements : 29, 59, 74, 95, 102, 104.

If A and B are two sets given in such a way that AxxB consists of 6 elements and if three elements of AxxB are (1,5), (2,3) and (3,5), what are the remaining elements?

What do you mean by representative elements? Name the groups of the periodic table, which contain representative elements.

What is the similarity in the valency of all the elements of group 1 in the modern periodic table?

An element Y has three shells with four electrons in the valence shell. Another element X has twice as many electrons in its second shell as in its first shell. i] Identify the elements X and Y. ii] Is there any similarity between the element Y and X? If so, what?

Home
Profile