Isn't it a because in b at the start of the equation the E in Fe just disappeared
Answer:
Its the first second and the fourth
solution:
You need to find the frequency, and they have already given you the wavelength. And since you already know the speed of light, you can use formula (2) to answer this problem. Remember to convert the nano meters to meters because the speed of light is in meters.
Answer: Each pair of shared electrons is a covalent bond which can be represented by a dash.
Explanation:
In a Lewis dot structure, the central atom can share electrons through bonds with the surrounding atoms, and this can look like a dash between the atoms.
Count up the number of electrons in each orbital. theres ten electrons which means it has 10 protons. the element would be neon