Answer:
8.24
Explanation:
the answer is explained above
Answer:
Electron affinity increases when moving left to right of the period.
Explanation:
Electron affinity is the amount of energy released when an isolated gaseous atom accepts electron to form the corresponding anion.
Trend of electron affinity across the period:-
- Across the period, the electron affinity increases as there is an increase in effective nuclear charge.
- Due to this, there is more force of attraction between the nucleus and the valence electrons when moving left to right in a period.
- Thus, more amount of energy is released when an electron is being gained in the neutral atom to form anion.
- Thus, electron affinity increases when moving left to right of the period.
Thus,
Al : -44 kJ/mol
Si : -120 kJ/mol
P : -74 kJ/mol
S : -200.4 kJ/mol
Cl : -384.7 kJ/mol
Al, Si, P, S, Cl are the members of third period and thus, left to right, the electron affinities of the elements increases as can be seen from the literature values.
When you change the surface area of the reactants, we do increase the rate of the reaction. The surface of the reactant will have a higher chance to collide with a solid reactant. For example, atoms and molecules have to collide with each other.
I really hope I could help, sorry if I'm wrong! :)
Answer:
4
Explanation:
7.60100, but we count as significant figures only the 0s b/n non-zero numbers
Answer:
find how much gold weighs by volume based on the karat and factor that in to find the answer
Explanation:
