The mass of N-15 is 15 amu.
Chemical elements are represented using their symbols, their mass number and their proton numbers. The mass number of this isotope of nitrogen is shown next to the symbol. Regardless of the mass of the isotopes, their proton number is the same, which is 7.
Answer: in order of increasing atomic number.
Explanation: Elements in the same group have similar chemical properties. This is because they have the same number of outer electrons and the same valency.
A=P +N
A=13+14
A=27 this the answer
Isotope atoms mean, atoms with the same number of protons but different number of neutrons in their nuclei . The given oxygen atoms are isotopes meaning they have different number of neutrons in their nuclei . Oxygen 16 have 8 protons and 8 neutrons in its nucleus but Oxygen has 8 protons and 10 neutrons. That's what make them different.
Answer: How many moles of HCl was produced?
⇒ 0.261 moles of HCl
How many moles of MgCl2 reacted?
⇒ 0.131 moles of MgCl2
What mass of MgCl2 reacted?
⇒ 12.4 g MgCl2
Explanation:
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