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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
If bromine atom is available in the form of, say, two isotopes `""_35^79Br (49.7%)" and """_35^81Br (50.3%)`, calculate the average atomic mass of bromine atom.
ANSWER IN DETAIL
State the postulates of the Dalton’s atomic theory.
What is the maximum number of electrons present in:
1. first shell
2. second shell
3. third shell and
4. fourth shell
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Draw the electron dot structure of this compound.
Name the gas that.
Turns moist starch iodide paper blue black.
Elements X and Y have 1 and 7 electrons in their outermost shell respectively.
What will be the charge present of the molecule XY after chemical combination?
K: Potassium:: C: ______.
Define the following term with an example.
Compound
Define the following term with an example.
Non-metal
Which of the following statements made by Dalton has not undergone any change?
The volume occupied by 4.4 g of CO2 at S.T.P ______
The number of atoms present in a molecule is called its ______.
Does the solubility of a substance change with temperature? Explain with the help of an example.
Dalton’s atomic theory successfully explained
(i) Law of conservation of mass
(ii) Law of constant composition
(iii) Law of radioactivity
(iv) Law of multiple proportions
The graphite refill used is pencil is made of element called ______.
