The maximum number of D orbitals in a principal energy level is 5.
Answer:
An Element
Explanation:
An Element is made up of only one type of atom (Gold, Silver, etc.)
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C is becsuse it just souds right
Matter is every object that stands on this Earth
Answer:
Carbon atoms with 7 neutrons have an atomic mass of 13 (6 protons + 7 neutrons = 13). These atoms are the isotope called carbon-13.Jul