Make a list of linux distros to try in old intel atom netbooks having only 1GB of ram.
Sure, here are some lightweight Linux distributions that you can try on old Intel Atom netbooks with only 1GB of RAM:

1. Lubuntu - a lightweight variant of Ubuntu with the LXDE desktop environment.
2. Xubuntu - another lightweight variant of Ubuntu with the Xfce desktop environment.
3. Linux Lite - a user-friendly lightweight distribution based on Ubuntu LTS releases.
4. Peppermint OS - a cloud-focused distribution with a lightweight desktop environment and web applications integrated into the system.
5. AntiX - a fast, lightweight distribution based on Debian with a choice of several desktop environments.
6. Puppy Linux - a small, fast, and portable distribution that can run entirely in RAM.
7. Bodhi Linux - a minimalistic distribution based on Ubuntu with the Enlightenment desktop environment.
8. LXLE - a lightweight distribution based on Ubuntu and the LXDE desktop environment, designed for older hardware.
9. CrunchBang++ - a Debian-based distribution with the Openbox window manager, focused on speed and simplicity.
10. ArchBang - a lightweight Arch Linux-based distribution with a pre-configured Openbox desktop environment.

Keep in mind that the performance of the netbook may still depend on its specific hardware configuration and other factors such as the type of storage device used.
How do the resource requirements (such as system memory and disk space) of these lightweight Linux distributions compare to those of regular Linux distros?
Lightweight Linux distributions typically require fewer resources than regular Linux distros. They use fewer system resources like RAM and disk space, and they are designed to be more efficient and faster. While regular Linux distros require more resources, lightweight Linux distros are optimized to run on computers with fewer system resources available. This makes them ideal for older or lower-end computers that may not have the capacity to run a more full-featured operating system.