The Electromagnetic<span> Spectrum consists of radio </span>waves, microwaves (a type of radiowave<span>), infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays. </span>Waves with the longest wavelengths<span> have the lowest frequencies. </span>Waves with the shortest wavelengths<span> have the highest frequencies.
-Hope this helped! :D</span>
Calcium has only two valence electrons in its shell. In order to agree with the octet rule it bonds with oxygen which has 6 valence electrons and with hydrogen which has 1 valence electron. Hope this answers the question. Have a nice day.
Hello, this is what u can write.
“An object moving with constant velocity must have a constant speed in a constant direction”
Hope this helps u :)
A. It is the reaction of an alkali metal with water.
B. Hydrogen , the test for hydrogen goes out with a squeaky pop.
C. Sodium + water —> sodium hydroxide + hydrogen
