Top answers

All subjects
A Level

Magnesium is in Group 2 of the Periodic Table. It has a number of naturally occurring isotopes, including 24Mg and 26Mg. (a) (i) Explain, in terms of the subatomic particles in the atoms, why 24Mg and 26Mg are isotopes.

Both isotopes of magnesium have 12 protons as shown by Mg's proton number in the periodic table.
By definition an isotope is an atom with the same number of protons but differs in its number of neutr...

LC
Answered by Lewis C. Chemistry tutor
9600 Views

Why did 'Reconstruction' (1865-1877) fail?

A combination of economic and socio-political factors account for the failure of Reconstruction, which was signalled definitively following the Hayes Compromise of 1877. However, the most pervasive factor...

JT
Answered by James T. History tutor
30311 Views

f(x) is defined by f(x) = 3*x^3 + 2*x^2 - 7*x + 2. Find f(1).

f(1) = 31^3 + 21^2 - 7*1 + 2 = 3 + 2 - 7 + 2 = 0

DM
Answered by Dragos M. Maths tutor
3351 Views

To what extent do the long term sales of a company, such as Primark, revolve around international trading ?

Perhaps one of the greatest reasons to suggest that Primark's long term success depends on trading internationally, is due to the fact that it allows the company to reach a wider scope of customers. There...

AC
4604 Views

Explain liberal ideas about freedom.

When approaching a question like this in an exam, first think about WHY liberals believe freedom is an important value. On the whole it is because they believe in what John Locke would call the inalienabl...

PE
2602 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning