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.
Answer:
A. Repel
Explanation:
A magnet comprises of north and south poles.
When the south magnetic poles of two magnets are brought together, the magnets will repel because they are like charges and like
charges repel each other.
But when the north magnetic pole of one magnet is brought together with the South Pole of another magnet, both magnets will attract because they have different charges + and - . Positive and negative charges attract .
Answer:
C
Explanation:
It can already be seperated because the mixture hasn't disolved into the water yet.
Answer:
The study of the human body as a machine for the performance of work has its foundations in three major areas of study—namely, mechanics, anatomy, and physiology; more specifically, biomechanics, musculoskeletal anatomy, and neuromuscular physiology. Explanation:
