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प्रश्न
Write the formula of its (X)
sulphate
nitrate
phosphate
carbonate
hydroxide.
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उत्तर
The formulae are
X(SO4)3
X(NO3)3
XPO4
X2(CO3)3
X(OH)3
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संबंधित प्रश्न
State differences between the properties of ionic compounds and covalent compounds.
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Calcium oxide
Elements X, Y, and Z have atomic numbers 6, 9 and 12 respectively. Which one forms a cation?
Define the term:
orbit
Five atoms are labeled A to E
|
Atoms |
Mass No |
Atomic No. |
|
A |
40 |
20 |
|
B |
19 |
9 |
|
C |
7 |
3 |
|
D |
16 |
8 |
|
E |
14 |
7 |
(a) Which one of these atoms:
(i) contains 7 protons
(ii) has electronic configuration 2,7
(b) Write down the formula in the compound formed between C and D
(c) Predict : (i) metals (ii) non-metals
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(a) Compare the atoms of these isotopes with respect to :
i. the composition of their nuclei
ii. their electronic configurations
(b) Give reasons why the two isotopes of magnesium have different mass numbers.
Give the orbital diagram of the following:
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Choose the odd one out and write the reason:
How many atoms of each kind are present in the following molecule:
carbon tetrachloride
