Podcast
Questions and Answers
What is the trend in first and second ionisation energies down the group?
What is the trend in first and second ionisation energies down the group?
- Remains constant due to the neutral charge of the nucleus
- Increases due to a larger atomic radius
- Decreases because of stronger attraction between nucleus and valence electron
- Decreases as atomic radius increases and shielding increases (correct)
Why does reactivity increase down Group 2?
Why does reactivity increase down Group 2?
- Increase in shielding and atomic radius (correct)
- Increase in nuclear charge
- Decrease in atomic radius
- Decrease in nuclear charge
What is the general equation for a Group 2 metal reacting with water?
What is the general equation for a Group 2 metal reacting with water?
- M(s) + H2O(l) Ã M(OH)2(s) + H(g) (correct)
- M(s) + H2O(l) Ã MOH2(s) + H2(g)
- M(s) + HO(l) Ã MO(s) + H2(g)
- M(s) + H2O(l) Ã MOH(s) + H(g)
Which species is oxidised when a Group 2 metal reacts with water?
Which species is oxidised when a Group 2 metal reacts with water?
What are the properties of titanium that make it useful?
What are the properties of titanium that make it useful?
Why can't carbon be used to extract titanium from the Earth's crust?
Why can't carbon be used to extract titanium from the Earth's crust?
What defines a metal according to the provided text?
What defines a metal according to the provided text?
What is the electronic configuration of Be?
What is the electronic configuration of Be?
Explain the trend in atomic radius down Group 2.
Explain the trend in atomic radius down Group 2.
Which element in Group 2 has the electronic configuration $1s^22s^22p^63s^23p^64s^2$?
Which element in Group 2 has the electronic configuration $1s^22s^22p^63s^23p^64s^2$?
What explains the trend in melting points down Group 2?
What explains the trend in melting points down Group 2?
Which Group 2 metal is an exception when it comes to the trend in melting points down the group?
Which Group 2 metal is an exception when it comes to the trend in melting points down the group?
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