Answer:
Four seasons occur on Earth
Explanation:
When the Earth has completely one revolution around the Sun, then it has completed 1 year, and four seasons have occurred in the meantime.
The many electron diamonds around the central carbon are 1689
Answer:
a. Be and Mg
Explanation:
Be (beryllium) and Mg (magnesium) are both found in the alkaline earth metals family (group 2) on the periodic table. Elements in the same family or group have similar properties,
Ca and Br are in groups 2 and 17
Cl and Ar are in groups 17 and 18
Na and P are in groups 1 and 15
<span>47.88 g/mol is the awsner your welcome</span>
