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प्रश्न
Fill in the blank
An _______ is electrically neutral.
उत्तर
An atom is electrically neutral
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संबंधित प्रश्न
Write the names of the elements present in the following compound.
Common salt
Write the names of the elements present in the :-
Sulphuric acid
Fill in the blank
An ion with positive charge is called ______
Define: Chemical bond
Name two particles found inside the nucleus. What are they collectively called ?
Define: Covalent bond
Who originated the word ‘atom’ ?
An atom has 13 protons and 14 neutrons.
What is the atomic number of the atom ?
Define: An Atom:
What are the building blocks of matter ?
How is the size of an atom indicated ?
How many times is a proton heavier than an electron?
Electron, proton, neutron are the types of ______ in an atom.
Match the pairs.
| Group 'A' | Group 'B' |
| a. Proton | i. Negatively charged |
| b. Electron | ii. Neutral |
| c. Neutron | iii. Positively charged |
The smallest particle of matter that can exist by itself is ______.
The volume occupied by 1 mole of a diatomic gas at S.T.P is ______
Write any two observations which support the fact that atoms are divisible.
An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.
