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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
Write the distribution of electrons in an atom of element whose atomic number is 18. What is special about the outermost electron shell (or valence shell) of the atom of this element?
Which of the following is the correct electronic configuration of sodium?
Which of the following represents the correct electron distribution in magnesium ion?
The atom of an element X has 7 electrons in its M shell.
(a) Write the electronic configuration of element X.
(b) What is the atomic number of element X?
(c) Is it a metal or a non-metal?
(d) What type of ion will be formed by an atom of element X? Write the symbol of the ion formed.
(e) What could element X be?
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An atom X has 2, 8, 7 electrons in its shell. It combines with Y having 1 electron in its outermost shell.
What type of bond will be formed between X and Y?
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Write down the electron distribution of chlorine atom. How many electrons are there in the L shell? (Atomic number of chlorine is 17).
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How will you define the term ‘electronic configuration’?
