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प्रश्न
Write the name and symbol of the element from the description.
The atom having the smallest size.
Write the name of the atom having the smallest size.
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उत्तर
Helium (He)
संबंधित प्रश्न
Answer the following in respect of element `31/15 P `
Give its formula with chlorine?
Give the trends in atomic size on moving down the group.
Arrange the elements of second and third periods in increasing order of their atomic size (excluding noble gases).
Which is greater in size an atom or an anion?
Size of atom progressively becomes smaller when we move from sodium (Na) to chlorine (CI) in the third period of the periodic table?
Give reasons for the following:
The size of the anion is greater than the size of the parent atom.
Write the name and symbol of the element from the description.
The atom having the smallest atomic mass.
Supply the missing word from those in the brackets:
If an element has seven electrons in its outermost shell then it is likely to have the ______ (largest/ smallest) atomic size among all the elements in the same period.
Arrange the following as per the instruction given in the bracket
Na, K, Li (Increasing atomic size)
The size of an atom is indicated by its _______.
Atomic radius is expressed in the unit _______.
Nanometer unit is used to measure atomic radius.
An element X has mass number 40 and contains 21 neutrons in its atom. To which group of the Periodic Table does it belong?
Which of the following is the correct order of atomic size?
Elements have been arranged in the following sequence on the basis of their increasing atomic masses.
| F, | Na, | Mg, | Al, | Si, | P, | S, | Cl, | Ar, | K |
- Pick two sets of elements which have similar properties.
- The given sequence represents which law of classification of elements?
Arrange the following elements in increasing order of their atomic radii.
- Li, Be, F, N
- Cl, At, Br I
Arrange the following in order of increasing radii:
N, O, P
Explain your choice.
Which one of the following has the largest atomic radius?
