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Explain the trend in first ionization energy down group 2. (3 marks)

The trend in first ionisation energy down a group: DECREASES due to:- Increase in atomic radius as there are more shells- Increased shielding because there is more electron repulsion from inner shells- This ...
Answered by • Chemistry tutor
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What is a public good?

A public good is good which is non- excludable and non-rival.This means the utility one person gains from the good does not diminish the utility another person may gain from the good. (non-rival)This also me...
JS
Answered by James S. • Economics tutor
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To what extent does the U.K. suffer from a democratic deficit?

On one hand, one might suggest that the United Kingdom does suffer from a democratic deficit. The U.K. does not hold a codified constitution with an entrenched Bill of Rights, as seen in the United States, w...
FA
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What is the difference between the Spanish verbs "ser" and "estar"?

In general, ser refers to permanent states and estar refers to to temporary states.In particular, estar can be used for locations, except when talking about events. For example, Su café está listo = Your cof...
SB
Answered by Simran B. • Spanish tutor
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What's the difference between the Language and Literature parts of the course?

In IB Language and Literature, the syllabus attempts to capture the two major sides of language in order to provide a well-rounded program of study. The 'Language' part of the course focuses more on the prac...
IW
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