Great question! An element is one specific symbol. For example, Mg would be an element, N would be an element, and O would be an element. A compound is several elements that come together. Since Mg(NO3)2 is made of three separate elements (Mg, N, and O), Mg(NO3)2 is a compound.
<span>c = speed of light = 3.00 x 10^5 km/s = 3.00 x 10^8 m/s
λ = wavelength of the microwave radiation = 3.50 cm = 0.035 m
f = frequency (in Hertz) = to be determined
f = c/λ = 3.00 x 10^8 m/s / 0.035 m
f = 8.57 x 10^9 Hz Frequency</span>
Air is a mixture of elements which are formed my atoms that forms molecules. Hope that helps!
Well what are u doing in the lab and what is something that u did wrong so u can approve
The central cluster of protons and neutrons in an atom is called the atom's nucleus. Because the only other part of an atom to be concerned about is the electron (which has a very small mass compared to protons and neutrons), the nucleus is also comparatively dense, and holds most of the atom's mass.
