Which statement describes an atomic nucleus? An atomic nucleus is negatively charged. An atomic nucleus has no electrical charge. An atomic nucleus consists of mostly empty space. An atomic nucleus contains most of the atom’s mass.
Answers
The correct statement is: An atomic nucleus contains most of the atom’s mass.
All of the atom's neutrons and protons are in the nucleus, and the atom's electrons are outside the nucleus.
It would take more than 1,800 electrons to add up to the mass of one neutron or one proton.
But no atom has more than around 240 electrons, so we can see that almost all of the atom's mass is in the nucleus.
Final answer:
The atomic nucleus is best described as containing most of the atom's mass due to the presence of protons and neutrons, not as being negatively charged or mostly empty space.
Explanation:
The correct statement that describes an atomic nucleus is that an atomic nucleus contains most of the atom’s mass. This is due to the presence of protons and neutrons in the nucleus which carry nearly all the mass of the atom. The nucleus is not negatively charged, it carries a positive electric charge because of the protons. It is also not correct to say that it's mostly empty space as this describes the whole atom's structure where most of the space is taken up by electrons circling the nucleus.
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Related Questions
A light goes on immediately when you flip a switch because.A. conductors allow electrons to travel extremely quickly from the power source to the lightB. tightly bound electrons are already present in the conductors that make up the circuitC. loosely bound electrons are already present in the wire conductors that make up the circuit
a moving company is called into a building and asked to relocate 520 bricks to a location 15 meters above the ground if each brick is 4 kilograms what amount of work will be needed to accomplish the task
Number 33 apparently the answer is 4 but I have no idea why
What’s the kinetic energy of the object? Use .Erica is competing in the shot put event at a track meet. She hurls a shot with a mass of 4 kilograms at a speed of 9 meters/second. The shot’s kinetic energy is joules.
Answers
f=4/2
f=2m/s
Hope this helps
Answer:
f = 0.5 Hz
v = 8 m/s
Explanation:
f = 1/T
f = 1/(2) = 0.5 Hz
v = λf
v = (2)(4) = 8 m/s
Answers
As absurd as the concept is, we must assume that a croissant
can fall 300.5 meters through the moisture-laden, perfumed and
polluted Parisian air with no air resistance whatsoever.
Acceleration due to gravity on Earth: 9.8 m/s²
Distance in clean,
unimpeded free-fall = (1/2) (acceleration) x (time²)
300.5 m = (1/2) (9.8 m/s²) (T²)
Divide each side
by (4.9 m/s²): (300.5 m) / (4.9 m/s²) = T²
Take the square root
of each side: T = √(300.5/4.9) (s²)
= 7.831 seconds .
Answers
Answer:
a) 240 m
b) 122 m/s
c) 28 m/s²
Explanation:
Given:
Equation for motion
x = 38t + 14t²
a) average velocity during first 3 seconds
average velocity =
now,
distance, at t = 0 s
x = 38 × 0 + 14 × 0² = 0 m
distance, at t = 3 s
x = 38 × 3 + 14 × 3² = 240 m
therefore,
average velocity = = 80 m/s
b) instantaneous velocity of the proton at t = 3.0 s
Instantaneous velocity, v =
or
Instantaneous velocity, v =
= 122 m/s
c) instantaneous acceleration of the proton at t = 3.0 s
Now,
Acceleration = = 0 + 28 = 28 m/s²
Answers
Answer:
C. 100 ft/min
Explanation:
A scalar quantity has no direction.
A scalar with direction is called a vector.
Answer:
C. 100ft/min
Explanation:
A scalar quantity is a quantity that has a magnitude but no direction, a vector quantity is a quantity that has both a magnitude and a direction. The other three answers are vectors quantities while C. is a scalar.
A. 440.00 Hz
B. 493.88 Hz
C. 523.25 Hz
D. 587.33 Hz
E. 659.26 Hz
F. 698.46 Hz
G. 783.99 Hz
Answers
Answer:
C
Explanation:
Given that a note has a wavelength of 0.65551 m. If the speed of sound is 343.00 m/s, the pitch of the note is the same as the frequency.
Sound Velocity = product of frequency and wavelength.
Substitute wave speed and wavelength into the formula
343 = f × 0.65551
Make f the subject of formula
F = 343 / 0.65551
F = 523.58 Henz
Therefore, the pitch of the note is 523.52 Hz approximately
The correct answer is option C
B. grouping together of asteroids.
C. explosion of an interstellar sun.
D. collision of two massive stars