Answer:
Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.
Answer:
Explanation:
We already know that the mass number of an atom is the sum of the number of protons and the number of neutrons.
So, the mass number of this isotope is;
Number of protons = 7
Number of neutrons = 8
Mass number = 7 + 8 = 15
Hence, the isotope is;
Answer:im in middle school in know this but w x y = d
Explanation:so your answer is d :)
The answer would be A. Genotype
Answer:
330.75 cm^3
Explanation:
d=m/v
10.5g/1 cm^3=31.5g/x cm^3
solve for x
round to the sig figs you have to.
