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Question
Select the correct answer from the choice given below.
The negatively charged particles in an atom
Options
protons
neutrons
electrons
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Solution
electrons
RELATED QUESTIONS
Write true or false
A heterogeneous mixture has a uniform composition throughout the mixture
Match the columns.
| column A | column B |
|
1. to separate grain from chaff |
a. filtration |
| 2. to saparate sawdust from water | b. sedimentation and deeantation |
| 3. to separate iodine from sodium chloride | c. winnowing |
| 4. to separate iron fillings from sand | d.sublimation |
|
5. it is used to separate sand and water |
e maganetic separation |
|
|
f .handpicking |
What is meant by H20 and 3H2O
Fill in the blank
A metal which is a poor conductor of electricity is _______.
Indicate whether the following statement is true or false:
Metals can be polished.
Who are my companions?
| Group 'A' | Group 'B' |
| 1. Stainless steel | (a) Non-metal |
| 2. Silver | (b) compound |
| 3. Bhajani mixture for milling | (c) Mixture |
| 4. Salt | (d) Element |
| 5. Coal | (e) Alloy |
| 6. Hydrogen | (f) Metal |
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‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
State five different characteristics of compounds.
Give an account of elements known to us.
