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Describe and explain the trend in first ionisation energy down group 2 of the periodic table.

Firstly, we must consider the definition of first ionisation energy (1^st IE). Thermodynamically, it is the enthalpy change when one mole of electrons is removed from a mole of gaseous atoms of ...

Answered by Thomas F. • Chemistry tutor

9639 Views

What does mens rea mean?

Mens rea is the latin phrase for "guilty mind", which when applied to law scenarios is most simply explained as the defendant (the person committing the crime) intended or planned to commit the ...

Answered by Abi L. • Law tutor

4666 Views

How does Auden tell the story in James Honeyman?

James Honeyman is a Ballad that follows the life of an isolated and ostracized protagonist - illustrating his profound scientific discorveries and the effect they have on his family. The story follows Hon...

Answered by Harry B. • English Literature tutor

5892 Views

You are given layers A,F,D,H without knowing their relative or specific age. Write two ways you can know which layer is the oldest.

The simpliest way of knowing is when the layers are horizontal, the stratigraphy principle of superposition applies so the top layer is the youngest the bottom layer is the oldest.

Answered by Theodoros T. • Geology tutor

1972 Views