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Question
Give reason for the following:
Ionisation potential of the element increases across a period.
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Solution
As atomic size decreases and nuclear charge increases, it becomes more difficult to remove electrons, requiring more energy and increasing electron potential.
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RELATED QUESTIONS
The energy required to remove an electron from a neutral isolated gaseous atom and convert it into a positively charged gaseous ion is called ____________. (electron affinity, ionization potential,
electronegativity)
Arrange the following as per the instruction given in the brackets:
Na, Li, K (Increasing Ionisation Energy)
Which element has:
two shells, both of which are completely filled with electrons?
Li, K, Na, H (In the decreasing order of their ionization potential)
Supply the missing word from those in the brackets:
If an element has a low ionization energy then it is likely to be ______ (metallic/ non-metallic).
Choose the correct answer from the choice given:
Ionisation potential increases over a period from left to right because the
The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer.
The ionization potential:
Identify the following:
The energy required to remove an electron from a neutral gaseous atom.
Ionisation Potential values depend on atomic size. Explain.
This question refers to the elements of the Periodic Table with atomic numbers from 3 to 18. Some of the elements are shown by letters, but the letters are not the usual symbols of the elements.
| 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| A | B | C | D | E | F | G | H |
| 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| I | J | K | L | M | N | O | P |
Which of these have least Ionisation Energy?
