Physics, 14.10.2019 17:30, itzygutierrez7373

1. in bohr's model of the atom, where are the electrons and protons located? (1 point)
a. the electrons move around the protons, which are at the center of the atom.
b. the electrons and protons move throughout the atom.
c. the electrons occupy fixed positions around the protons, which are at the center of the atom.
d. the electrons and protons are located throughout the atom, but they are not free to move.

Answers: 3

Show answers

Answers

Well, it's really dangerous to try and visualize physical models for things
of this size. But if you must, then it's something like this:

-- The nucleus is a tight-packed bunch of protons and neutrons, located
at the center of each atom.

-- The electrons live all around the nucleus, in a space far from it.
A description of the relative sizes that I read more than 60 years ago
and always stuck with me goes like this: The nucleus in the middle
and the electrons whizzing around it have a size-relationship that's
about the same as a bunch of grapes in the middle of the state of Texas.

This also tells us that matter is mostly empty space !

-- In Bohr's model of the atom, he described the whole thing very much
like a miniature solar system ... the electrons are tiny, solid little balls,
orbiting the nucleus like planets around the sun.

We learned later that it's impossible to talk about things like "how big is
the electron" or "where is the electron" or "how much momentum does
the electron have". The best we can do is talk about a 'cloud' around the
nucleus ... it has some mass and some negative charge, and portions
of it somehow exist at different levels of energy, and can jump to
different levels.

This is NOT because we don't have good enough technology yet to
zoom in on the electrons, and at some time in the future we'll be able
to sharply see where they are and how fast they're moving. It's because
on the scale of atomic dimensions, there is NO SUCH THING as "where
is it" or "how big is it" or "how fast is it moving". These don't exist.
"Location" is described in terms of probability, objects behave like solid
waves, and an object can have this much energy or that much energy
but NO AMOUNT OF ENERGY IN BETWEEN.
Weird ? Hard to understand ? You said it !

BTW ... the answer to the question is ' A ' .

answered: Guest

d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic = - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day

answered: Guest

force required to detach it is given by

$f = 4 * 10^{-8} n$

charges are taken to be fundamental charge

$q_1 = q_2 = 1.6 * 10^{-19}c$

now we have

$f = \frac{kq_1q_2}{r^2}$

$4 * 10^{-8} = \frac{9*10^9 * 1.6*10^{-19}* 1.6* 10^{-19}}{r^2}$

$r = 7.6 * 10^{-11} m$

so above is the minimum distance at which it will detach

Other questions on the subject: Physics

Physics, 22.06.2019 16:00, trevorhenyan51

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?

Answers: 1

continue

Physics, 22.06.2019 17:30, HernanJe6

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.

Answers: 1

continue

Physics, 22.06.2019 20:00, luceridiaaz

What is the name of the perceived change in a sound wave’s frequency due to motion between the observer and the sound source?

Answers: 1

continue

Physics, 23.06.2019 01:20, zoe41

Question 1 of 15 2 points when doing science as inquiry, you should have some idea of what you think the final result will be. o a. true o b. false submit

Answers: 1

continue

Do you know the correct answer?

1. in bohr's model of the atom, where are the electrons and protons located? (1 point)
a. the...