Answer: Science is a particular way of knowing about the world. In science, explanations are restricted to those that can be inferred from confirmable data—the results obtained through observations and experiments that can be substantiated by other scientists. Anything that can be observed or measured is amenable to scientific investigation. Explanations that cannot be based on empirical evidence are not a part of science.
Explanation:
Electronegativity is the tendency of the element to attract shared pair of electron towards itself in bonded condition.
Ionisation enrgy is the amount of energy required to remove the outermost electron from neutral gaseous atom
So the first one is yellow and the other one is white
Answer:
108.76 amu is the mass of 109Ag
Explanation:
The formula for the calculation of the average atomic mass is:
Given that:
Since the element has only 2 isotopes, so the let the percentage of first be x and the second is 100 -x.
For first isotope, 109Ag:
% = 51.82 %
Mass = x amu
For second isotope, 107Ag:
% = 100 - x
= 100 - 51.82 % = 48.18 %
Mass = 106.905 amu
Given, Average Mass = 107.868 amu
Thus,
Solving for x, we get that:
x = 108.76 amu
<u>108.76 amu is the mass of 109Ag</u>
The electrons move<span> around the protons, which are at the center of the atom. </span>How does the energy of an electron change when the electron moves closer to the nucleus<span>? ... When an </span>electron moves<span> from a lower to a higher </span>energy<span> level, the</span>electron<span>...</span>
