Answer: Option (A) is the correct answer.
Explanation:
An atom who has seven valence electrons in its ground state will have the following electronic configuration in its sub shells as 2, 7.
Thus, there will be in total 9 electrons and it is known that fluorine has atomic number 9.
Whereas sodium has 2, 8, 1 electrons in its sub-shell.
Calcium has 2, 8, 8, 2 electrons in its sub-shell and oxygen has 2, 6 electrons in its sub-shell.
Thus, we can conclude that out of the given options, fluorine is the element whose atom in the ground state has seven valence electrons.
An electric field travels away from a <u>positive charge</u> and toward a <u>negative charge</u>.
<h3>
What is electric field?</h3>
Electric field is the region of space where the impact of electric force is felt.
The electrostatic field is always directed away from positive charges and toward negative charges, and, field lines must go away from positive charges and toward negative ones.
Thus, an electric field travels away from a positive charge and toward a negative charge.
Learn more about electric field here: brainly.com/question/14372859
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A) I = -1, B) Sr = +2, C) K = +1, D) N = -3, E) S = -2, F) In = +3
A) Negative
b) Negative
c) Positive
d) 0
e) Positive
The origin of heat transfer is the conversion of potential energy of the egg to heat energy.
