A quick guide to RAM (for someone with your modest requirements):
1 GB > Usable, but only just.
2 GB > Far better. (A big improvement over 1GB).
4 GB > Offers better performance than 2 GB but, when simply web-browsing, word-processing, etc, doesn't really add that much to what you get with 2 GB (simply because 2 GB is generally enough anyway)
8 GB > More than enough!
. . . and a quick guide to hard drive (or solid state drive) space:
32 GB > The smallest drive capacity now offered by many manufacturers. Windows takes up most of it, leaving you hardly anything to play with. Further, several AB members have experienced problems with Windows 10 updates being unable to install because of insufficient drive capacity. Avoid!
64 GB > As long as you're not planning on storing loads of large files (such as videos) on your laptop, perfectly adequate. (I'm typing this on a Windows 7 desktop with a 64GB drive. It's good enough for my modest needs and I can always plug in a USB memory stick if I want to store lots of videos or pictures).
128 GB > As with 64 GB, perfectly good enough for what you're planning to do with your laptop.
The processor in the laptop you're considering is also good enough for your needs (as, indeed, any modern processor would be).
The graphics card is a bonus (because many laptops rely on 'on board' graphics, where part of the processing power of the motherboard is used to handle graphics), so the processor will be left to carry out other tasks.
The £350 price tag is reasonable for what you get for your money (Although you could probably find something else to meet your modest needs for rather less).