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प्रश्न
Give scientific reason.
Atoms are stable though negatively charged electron is revolving within it.
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उत्तर
Atoms are stables though negatively charged electrons are revolving within it because each atom contains equal numbers of protons and electrons. So, the charge on negatively charged electrons are balanced by a charge on the positively charged proton. Therefore, the atom is electrically neutral and stable.
संबंधित प्रश्न
Which shell of an atom can accommodate a maximum of :
(a) 8 electrons ?
(b) 32 electrons ?
An element has atomic number 13 and an atomic mass of 27.
(a) How many electrons are there in each atom of the element ?
(b) How are these electrons distributed in the various energy levels ?
Which of the following represents the correct electron distribution in magnesium ion?
The electronic configuration magnesium is 2, 8, 2. From this it is understood that the valence shell of magnesium is ______.
Explain the arrangement and distribution of electrons in the various shells with reference to an atom in general and to an atom of potassium ‘3919K’ with special reference to the 2n2 rule.
Differentiate between the term Duplet and octet rule.
Give a reason for the following:
Helium is chemical extremely unreactive.
Write the electronic configuration of K and Cl
Which block of the periodic table contains metals, non-metals, and metalloids?
Atomic numbers of A and B are 18 and 19 respectively. What is the electronic configuration of A and B?
