First pictures answer should be +1
second, the answer should be the last answer. 231 Th 90
<span>96.09 g/mol, so weight of Oxygen in the whole thing is 16g/mol*3 = 48.
48/96.09 = around 49.95%</span>
The 7 types of electromagnetic radiation, from largest to smallest are:
Radio waves
Microwaves
Infrared waves
Visible light (ROY G BIV, red being longest and violet being shortest)
Ultraviolet (UV) radiation
X-rays
Gamma rays
The longer the wavelength, the smaller the frequency, and vice versa.
Hope this helps!!
