The correct answer is A: Formed by the sharing of valance electrons between atoms.
Hope this helps :D
The Energy of an atom that emits a photon of wavelength 2.21 m is
3.028 × 10⁻¹⁹ J.I attached the working and the answer to the question below. I hope I was able to help.
Please note that C = speed of light, ν = frequency, λ= wavelength, h = Planck's Constant
C) Stars get born, get older, then eventually die.
Answer mgjvguvjngujgguhggj
Is this about flowers I kinda remeber but nit really if so it's the polination in flowers I'll find out in the morning