Answer:
<em><u>700N</u></em>
Explanation:
<em><u>F</u></em><em><u>=</u></em><em><u>ma</u></em>
<em><u>mass</u></em><em><u>=</u></em><em><u>35</u></em>
<em><u>acceleration</u></em><em><u> </u></em><em><u>=</u></em><em><u>20</u></em>
Answer:
Same number of protons but different number of neutrons
Explanation:
Isotopy is a phenomena in which atoms of the same element differs by the number of neutrons in their nucleus. While it is important to note that they have the same number of protons and hence the same atomic number, they have different mass numbers.
They have the same atomic numbers because an element can only have one atomic number. Hence, all atoms of that element are composed of the same number of protons but different neutron numbers.
The only explanation, Rutherford suggested in 1911, was that the alpha particles were being scattered by a large amount of positive charge concentrated in a very small space at the center of the gold atom.
Answer:
Option B. PV = nRT.
Explanation:
From the above,
C = PV / T. (1)
But, C is directly proportional to n, where R is the gas constant i.e
C & n
C = nR
Substituting the value of C into equation (1), we have:
C = PV / T
nR = PV / T
Cross multiply to express in linear form
nRT = PV
Therefore,
PV = nRT
