27.3 days around the earth.
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It doesn't orbit earth faster. The ISS is in a lower orbit with a period of 91 minutes compared to the Hubble's orbital period of 96-97 minutes. Orbital periods generally increase with orbit radius and speed in the orbit decreases with increasing orbit radius.
The orbital period of the earth is 365.256366 days, or 1.0000175 years. About a year. That's how we define the year - it's the time it takes the earth to make one complete orbital trip around the sun. 365 and 1/4 days giving us our year. At the same time the earth spins on its axis which takes 24 hours giving us our days
Be (beryllium) has four electrons total: the first orbital, the 1s orbital, has two, which leaves two electrons in the outer shell.
The moon's synodic period, the time it takes to come back to the same phase relative to the Earth and Sun, varies but, on average, is 29.53 days.
the Moon moves about 3.8 cm away from the earth each year