How many electrons are present in the ion of the isotope of oxygen, 18O3- if oxygen has an atomic number of 8?
A) 18
B) 5
C) 8
D) 11
D
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A red razorback uniform appears red because
A. It refracts red wavelengths B. It creates constructive interference for red wavelengths C. It reflects red wavelengths D. It absorbs red wavelengths
Two identical balls are at rest side by side at the bottom of a hill. Some time after ball A is kicked up the hill, ball B is given a kick up the hill. Ball A is headed downhill when it passes ball B headed up the hill. At the instant when ball A passes ball B,
A. it has the same position and velocity as ball B. B. it has the same position and acceleration as ball B. C. it has the same velocity and acceleration as ball B. D. it has the same displacement and velocity as ball B. E. it has the same position, displacement and velocity as ball B.
Which of the following shoreline features does not belong in association with the others?
A) sea stack B) sea caves C) spit D) sea arch
Describe the range of sizes and masses of black holes
What will be an ideal response?