Answer:
a) unstable
b) unstable
c) unstable
d) Stable
Explanation:
a)
The given isotope , atomic number is greater than 83.(84>83).
Therefore, it is unstable.
b)
The given isotope has even number of protons(15) and neutrons(15).
Therefore, it is unstable.
c)
The given isotope has even number of protons(15).
Therefore, it is unstable.
d)
The given isotope have even number of neutrons ( 68) an d the proton ratio is .It is more than 1.25.
Therefore, it is stable.
Answer:
8 electrons
Explanation:
as the the 1st period (H and He), it can hold up to 2 electrons. in the 2nd period (Li, Be, B, C, N, O, F and Ne), it can hold up to 8 electrons. Itstops at 6 when it reached O. add the lelectrons that you have
2+6=8
8 electrons
Answer: Thus the mass, in grams, of 27 moles of smooth muscle myosin is 12960000 grams
Explanation:
According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass, occupies 22.4 L at STP contains avogadro's number of particles.
Molecular mass of protein = 480,000 g/mol
Thus 1 mole of protein weighs = 480,000 g
So 27 moles of protein weighs =
Thus the mass, in grams, of 27 moles of smooth muscle myosin is 12960000 grams
Some fuels are used to better suit vehicles, while other types of fuels are used to reduce carbon emmision, e.t.c.