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प्रश्न
Give the symbol and valency of the following element and radical.
Ammonium
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उत्तर
| Element/Radical | Symbol | Valency |
| Ammonium | NH4 | one |
APPEARS IN
संबंधित प्रश्न
Write the names given to the vertical columns and horizontal rows in the Modern Periodic Table. How does the metallic character of elements vary on moving down a vertical column? How does the size of atomic radius vary on moving left to right in a horizontal row? Give reason in support of your answer in the above two cases.
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On going down in a group of the periodic table, the number of valence electrons increases.
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(i) same atomic mass
(ii) same atomic number
(iii) same physical properties
(iv) same chemical properties
(a) (i), (ii) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (ii) and (iv)
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- Give its formula with hydrogen.
