Answer:
The speed of light, c, equals the wavelength, λ (pronounced lambda), times the frequency, ν, (pronounced noo).
c=λν
c is a constant. It is usually given as 3.00×108 m/s or 3.00×1010 cm/s rounded to three significant figures.❤
the identity of element remains same
Answer:
I think sodium it may be wrong soŕry
It's a trigonal pyramidal, and this molecule is p<span>hosphorus trifluoride. YOU'RE WELCOME :D</span>