All categories

3 years ago

When the mass of the boron atom is calculated, the mass of the electrons is ignored. Why is the mass of the electrons ignored?

Chemistry

2 answers:

nirvana33 [79]3 years ago

8 0

Answer. Because electron mass is so insignificant compared to proton and neutron mass that it CAN be ignored.

Pavel [41]3 years ago

5 0

Answer:

Because electron mass is so insignificant compared to proton and neutron mass that it can be ignored.

Explanation:

You might be interested in

Why do we say the particles in a rock lying on the ground have kinetic energy and potential energy?

oksano4ka [1.4K]

Answer:

the particles of the rock possess kinetic energy as they stay in a place the particles also contain potential energy due to their position and arrangement This form of stored energy is responsible for keeping the particles together

Explanation:

hop it helps

3 0

2 years ago

Qofudowqfowefjwobfwofbwfofnroenennefeoiqefopne FREEE PONITTSS

Thepotemich [5.8K]

Hey lol
explanation:)))

5 0

3 years ago

Read 2 more answers

Two hydrogen atoms collide in a head on collision and end up with zero kinetic energy. Each then emits a photon of 121.6 nm (n=2

Zinaida [17]

Explanation:

Expression for the kinetic energy is as follows.

K.E = $\frac{1}{2}mv^{2}$

Now, total kinetic energy will be as follows.

K.E = $2 \times \frac{1}{2}mv^{2}$ = $m \times v^{2}$

Since, this energy converts into electromagnetic radiation of wavelength 121.6 nm.

Relation between energy and photon is as follows.

Energy of photon = $\frac{hc}{\lambda}$

= $\frac{6.626 \times 10^{-34} \times 3 \times 10^{8}}{121.6 \times 10^{-9}}$

= $1.63 \times 10^{-18} J$

$m \times v^{2} = 1.63 \times 10^{-18}$

v = $\sqrt{\frac{1.63 \times 10^{-18}}{1.67 \times 10^{-27}}$

= $3.12 \times 10^{4}$ m/s

Thus, we can conclude that atoms were moving at a speed of $3.12 \times 10^{4}$ m/s before the collision.

8 0

3 years ago

Could the cuttlefish tell the difference between the blue and yellow in the lab?

jeka94

Answer:

<em>yes</em>

Explanation:

the cuttle fish tell the difference between blue and yellow

5 0

1 year ago

Read the article. Use your understanding to answer the questions that follow. What type of source is this article? primary or se

valkas [14]

Answer: option C

Explanation:

3 0

3 years ago

Read 2 more answers