The answer is Electrons travel around the nucleus in fixed energy levels with energies that vary User:
Democritus thought that matter was made of tiny particles
A) that could be divided.
B) that could not be divided.
C) that were all round and smooth.
D) of earth, air, fire, and water. Weegy:
Democritus thought that matter was made of tiny particles that could not be divided. User:
The diagram in Figure 4-1 shows the results of Rutherford’s gold foil experiment. What caused some of the alpha particles to bounce straight back from the gold foil?
A) nuclei in the gold atoms
B) electrons in the gold atoms
C) negative charges in the gold atoms
D) other alpha particles Weegy:
the answer is B) electrons in the gold atoms User:
Which of the following is a typical property of an ionic compound?
A) poor conductor of electric current when melted
B) all of the above
C) low melting point
D) tendency to shatter when struck Weegy:
the answer is A) poor conductor of electric current when melted User:
How does increasing the amount of carbon in steel affect its properties?
A) Carbon makes the lattice harder and stronger.
B) Carbon makes the steel light enough to use for airplane parts.
C) Carbon makes the steel softer and easier to cut.
D) Carbon forms an oxide that protects the steel from rusting. Weegy:
the answer is C) Carbon makes the steel softer and easier to cut. User:
The unit for atomic mass is
A) none of the above
D) amu Weegy:
The unit for atomic mass is D) amu (More)