The moon covers the sun, during this the earth on which it happpens, the earth is shadowing, untill it is over.
A stable atom with neutral charge has the same number of protons and electrons.
While the charge of protons is positve and the charge of electrons is negative, the magnitude of their charges are equal.
Then, in order to the atom be neutral the positve charge equals the negative charge, and so the number of protons equals the number of electrons.
Answer:
Will eating too much fat in food cause brain cancer?
Explanation:
A good scientific question is one that can have an answer and be tested. Avoid how and why questions.
Y=-(x^2-20x+64)
----find two numbers that multiply to 64 and add to -20. They are -16 and -4--
y=-(x-16)(x-4)
ROOTS : 16, 4
