Answer:
Element with the smallest radius is Carbon.
Explanation:
In a periodic table, atomic radius increases down the group due to addition of a new shell and decreases across the period from left to right due to increasing nuclear charge.
Due to addition of more electrons in same shell and increase of positive charge in nucleus increases attractive forces between electrons and nucleus hence decreasing size.
Carbon and Lithium are present in same period and hence Carbon has smaller size; Potassium and Bromine are present in same period and hence out of the two, Bromine has smaller size.
On comparing Carbon and Bromine, atomic radius increases down the group hence, Carbon has the smallest radius among the four given elements.
PV = nRT
P is pressure, V is volume in L, n is number of moles, R is the gas constant, and T is temperature in K
(1.23 atm)(10.3 L) = (n)(.08206)(29.8 + 273)
n = .5 moles x 38 grams per mol F2 = 19.4 grams F2
Answer:
The correct answer is A.
Explanation:
Electrical potential energy is a type of potential energy that results from the Coulomb force and is associated with point loads in a defined system.
For a point charge in the presence of an electric field E produced by another point charge Q, electrostatic potential energy is defined as the negative of the work done by the electrostatic force to carry the charge from position A to position B: mathematically this is a line integral.
The electric field is conservative, and, for a point charge, it is radial, so the work is independent of the trajectory.
Have a nice day!
Answer:
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