<u>Answer:</u>
The idea that as we go down the periodic table the atomic radius increases and first ionization energy decreases was given by Henry Moosely after he made some changes in the periodic table, the theory proposed by Mendeleev.
<u>Explanation:</u>
- Both these trends were well explained and supported by genuine reasons.
- As we go down a group in periodic table, a new shell is added at each level, which increases the size and hence the radius of the atom and the size of atom increases which means the outermost shell is increasingly moving farther from the atom.
- Due to this fact, electrons experience less attractive force from the nucleus and electrons are easily removed, so the first ionization energy decreases.
Answer:
<h2>The answer is 40 N</h2>
Explanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
<h3>force = mass × acceleration</h3>
From the question
mass = 50 kg
acceleration = 0.8 m/s²
We have
Force = 50 × 0.8
We have the final answer as
<h3>40 N</h3>
Hope this helps you
The mass of an atom is given by the sum of the number of PROTONS and the number of NEUTRONS since ELETRON'S mass is negligible.
The mass is 24+28 = 52.
The substance that will have the largest temperature change
is Iron (Fe). In order to find out which one would have the largest temperature
change, you will need the specific heat of the substances. The specific heat is
inversely proportional to temperature change. Since Iron has the lowest
specific heat, it now has the highest temperature change.
83.9 is the answer i’m pretty sure