The first shell can hold up to two electrons maximum.
From the periodic table, we can find that hydrogen has only one electron occupying the first shell. Therefore, hydrogen would require an additional one electron to fill up the first shell.
1. Sunspots
2. Sun
3. Spectroscopy lets scientists identify silicon dust in the clouds of gas giant planets like HD 209458b located 150 light-years away, and<span>The Earth's atmosphere absorbs much of the infrared and ultraviolet light that passes through it. Space telescopes can detect these waves</span>
It’s A. Land heats up and cools quickly then water
The speed is 7,350km that's the speed of the car