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प्रश्न
Define: An Atom:
उत्तर
An Atom: Smallest particle of an element that can exist and have properties of an element.
APPEARS IN
संबंधित प्रश्न
MATCH THE COLUMNAS
| 1. Jpham Dalton | a. Neutrons |
| 2. Atom | b. Model of the atom |
| 3. Chadwick | c.The atomic theory of matter |
| 4. Rutherfrod | d. Positively charged |
| 5. Protons | e. Electricity neutral |
| 6. Nuclear fusion | f. Generator of electricity |
| 7.Gamma -rays | g. High penetrating power |
| h.Energy in sun |
Write the names of the elements present in the:-
Acetic acid
Write the names of `("NH"_4)_2"SO"_4` compounds:
Define: Ions
Define: Relative atomic mass
What does an atom consist of ? Explain.
Name the particles which revolve around the nucleus.
Who originated the word ‘atom’ ?
Fill in the blank
An excess of electrons produces a ________ charge.
Select the correct answer to the statement given below:
Imaginary path around the nucleus of an atom in which electrons revolve.
Rewrite the given sentence in correct form.
Elements contain two or more kind of atoms and compounds contain only one kind of atom.
The basic unit of matter is ______.
Which of the following statements made by Dalton has not undergone any change?
______ is the smallest particle of an element.
An element is composed of ______ atoms.
1 mole of Gold and Silver contain same number of atoms.
You are provided with a fine white coloured powder which is either sugar or salt. How would you identify it without tasting?
A sample of vitamic C is known to contain 2.58 ×1024 oxygen atoms. How many moles of oxygen atoms are present in the sample?
The smallest unit of an element is ______.
