# Electromagnetic radiation (UV, X-rays, gamma)

> Light is one member of a family of electromagnetic rays, in order: radio waves, microwaves, infrared, visible light, ultraviolet, X-rays and gamma rays. From radio waves to gamma rays the frequency and energy rise and the wavelength falls; X-rays and gamma rays are highly penetrating (gamma the most), so they are used to see inside objects (X-ray screens, checking welds) and to treat tumours.

> [ar-EG] الضوء واحد من عيلة الـ electromagnetic rays، وترتيبها كده: radio waves، microwaves، infrared، visible light، ultraviolet، X-rays، gamma rays. وإنت ماشي من الـ radio waves لحد الـ gamma rays، الـ frequency والـ energy بيزيدوا والـ wavelength بتقل. والـ X-rays والـ gamma rays عندهم penetrating power عالية (والـ gamma أعلاهم)، عشان كده بنستخدمهم عشان نشوف جوه الأجسام (شاشات الـ X-ray وفحص اللحامات) وفي علاج الأورام.

Part of: Transition Elements (https://yaani.ai/en/learn/chemistry/chem-s3-en.ch1)

## Builds on

- Light and waves

## Common mix-ups

- Gamma rays are particles like alpha and beta.: No. Gamma rays are not particles like alpha and beta. They are electromagnetic rays, in the same family as light, at its high-energy end, and they have a very high penetrating power. ([ar-EG] لأ، الـ gamma rays مش particles؛ دي electromagnetic rays زيها زي الضوء.)
- Only visible light is electromagnetic radiation.: No. Visible light is one member of the electromagnetic family; radio waves, microwaves, infrared, ultraviolet, X-rays and gamma rays are electromagnetic radiation too. Visible light is simply the part our eyes can see. ([ar-EG] الـ visible light عضو واحد من عيلة الـ electromagnetic radiation؛ الـ radio waves والـ microwaves والـ infrared والـ ultraviolet والـ X-rays والـ gamma rays منها هي كمان. الفرق إن عينينا بتشوف الجزء الـ visible لوحده.)

Source: https://yaani.ai/en/concept/phys.em-spectrum