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प्रश्न
Draw the geometric atomic structure of the following atom showing the number of electrons, protons and neutrons in them:
\[\ce{^23_11Na}\]
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उत्तर
Geometric atomic structure of:
\[\ce{^23_11Na}\]
Number of protons p = 11 = e
A = p + n
23 = 11 + n
∴ Number of neutrons n = 12
Electronic configuration 2, 8, 1
K L M
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संबंधित प्रश्न
Five atoms are labelled from 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 an electronic configuration 2, 7?
(b) Write down the formula of the compound formed between C and D.
(c) predict which are: (i) metals, (ii) non-metals?
State differences between the properties of ionic compounds and covalent compounds.
Fill in the blanks.
The electrovalent bond or ionic bond is called as _____ bond
State the type of bonding in the following molecule.
Calcium oxide
Element X is a metal with a valency 2; Y is a non-metal with a valency 3.
(a) Write an equation to show how Y forms as ion
(b) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
How many atoms of each kind are present in the following molecules: calcium oxide, chlorine, water, carbon tetrachloride?
How many electrons are required by each atom mentioned in (a) to attain the nearest noble gas configuration?
Why do they exist as monoatoms in molecules?
Draw orbit structure diagram of calcium oxide (CaO).
Spot the error/correct the wrong statement:
In the formation of compounds, the inner shell electrons of an atom involved in bonding.
What is a chemical bond?
