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प्रश्न
Which of the following element would lose an electron easily?
(a) Mg
(b) Na
(c) K
(d) Ca
उत्तर
(c) K
K would lose an electron easily as it is a group 1 metal whose atomic number is greater than that of Na, which also belongs to group 1. Mg and Ca are group 2 metals and the tendency to lose electrons decreases on moving from left to right in a period of periodic table.
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संबंधित प्रश्न
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Which of these have physical and chemical properties resembling chlorine.
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(iv) Name the element which has the highest ionization potential.
(v) How many electrons are present in the valence shell of the element with atomic number 18?
(vi) What is the name given to the energy released, when an atom in its isolated gaseous state accepts an electron to form an anion?
(vii) What is the electronic configuration of the element in the third period which gains one electron to become an anion?
(viii) Fill in the blanks:
The atomic size ______ as we move from left to right across the period, because the ______ increases, but the ______ remains the same.
Choose the most appropriate answer from the following list of oxides which fit the description.
An amphoteric oxide.
Write the electronic configuration of element 17T35.
- What is the group number of T?
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