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Why do ionisation energies typically increase upon going across a period yet decrease upon going down a group?

‘Ionisation energy’ is the term used to describe the amount of energy it takes to remove an electron from an atom to form a positively charged ion. It is usually represented by the unit kJ/mol, meaning it de...
LM
Answered by Lewis M. • Chemistry tutor
3384 Views

How am I to approach an unseen poem?

*** Firstly, you need to read the poem to discover its subject matter (for example, a love poem). Whilst doing this, it’s also important to consider the perspective of the speaker in the poem in regards to t...
TB
4951 Views

Find all solutions of x^2-x-6 using the quadratic formula

From the given quadratic, we have a=1, b=-1, and c=-6. We substitute these values into the quadratic formula, x=-b+-sqrt(b^2-4ac)/2a, giving us x=-1+-sqrt(-1^2-4 1 -6)/2*1. This simplifies to x=1+-5/2. Keepi...
JH
Answered by Jack H. • Maths tutor
4639 Views

How can I introduce myself?

For me, my name is Hayley then it will be わたしはヘイリイです。ヘイリイis Hayley in Katakana (used for english phase in japanese).わたしis I am, ですis an ending after a noun/adjective for a japanese present form sentences.
HL
2417 Views

Express square root of 48 in the form n x square root of 3 , where n is an integer

We know that 3 x 16 = 48 This is equivalent to saying 3 x 4^2 = 48 Therefore the square root of 48 can be written as square root of (4^2 x 3) = 4 x square root 3
HW
Answered by Helena W. • Maths tutor
10270 Views