Answer:
The term “flat bone” is somewhat of a misnomer because, although a flat bone is typically thin, it is also often curved. Examples include the cranial (skull) bones, the scapulae (shoulder blades), the sternum (breastbone), and the ribs. Flat bones serve as points of attachment for muscles and often protect internal organs.
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The mass number of hydrogen is 2
The mass number of helium is 4
The mass number of boron is 7
Answer:
CaO is a binary compound.