Diamond, graphite, and buckyballs are
a. isotopes.
b. allotropes.
c. isomeres.
d. diatomic.
b
You might also like to view...
Since atoms are mostly empty space, why don't objects pass through one another?
A) The electrons on the atoms repel other electrons on other atoms when they get close. B) The nucleus of one atom repels the nucleus of another atom when it gets close. C) The nucleus of one atom attracts the nucleus of a neighboring atom to form a barrier. D) The electrons of one attract the nucleus of a neighboring atom to form a barrier.
The half-life of a muon is 2.2 ?s. How fast is it moving relative to an observer who says its half-life is 4.4 ?s?
a. 0.87 c b. 0.75 c c. 0.97 c d. 0.72 c e. 0.50 c
When U-235 undergoes fission, the total number of protons in the fragments is
A) 90. B) 91. C) 92. D) 93. E) none of the above
If a doubly-ionized oxygen atom (O–2) is accelerated from rest by going through a potential difference of 32 V, what will be the change in its kinetic energy?
a. 16 eV b. 32 eV c. 64 eV d. 51 eV e. none of the above