1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dmitry_Shevchenko [17]
3 years ago
8

In which of these cases do we have enough information to say that the atom is electrically neutral?

Physics
2 answers:
Luba_88 [7]3 years ago
5 0
<span>So we want to know when do we have enough information about the atom that we can say that it is electrically neutral. So the information we need to know is the number of protons, whic are positively charged particles and the number of electrons which are negatively charged particles. Number of protons has to be equal to number of electrons for the atom to have neutral charge. Neutrons are electrically neutral so their number doesn't change the charge of the atom. So the correct answer is B. </span>
Svetradugi [14.3K]3 years ago
3 0
B. 7 protons and 7 electrons, just took the test
You might be interested in
Why do the lighter isotopes disappear first from the atmosphere? Where do those isotopes go?
denpristay [2]

Lighter molecules move fast and escape from the upper atmosphere relatively quickly.

To find the answer, we have to know more about the lighter isotopes.

<h3>What are lighter isotopes?</h3>
  • Lighter molecules are mobile and soon leave the higher atmosphere.
  • A particular element's stable isotopes have slightly different atomic masses and quantum mechanical energies.
  • The lighter isotope of an element's chemical bonds are more easily broken than the heavier isotope's.
  • As a result, the light isotope typically benefits from chemical reactions.

Thus, we can conclude that, lighter molecules move fast and escape from the upper atmosphere relatively quickly.

Learn more about the isotopes here:

brainly.com/question/364529

#SPJ4

3 0
1 year ago
Using an elastic cord, the astronaut in the black shirt pulls the astronaut with the red shirt back towards him before releasing
pishuonlain [190]

Answer:

50 T-shirt Design Ideas That Won't Wear Out - 99Designshttps://99designs.com › blog › creative-inspiration › t-s...

Whatever message your t-shirt needs to send, we've got 50 t-shirt design ... Illustrated chicken astronaut t-shirt ... of the challenges associated with a t-shirt for a business is getting people to wear it. ... shirt is a great way to create memorabilia that participants can look back on ... Graphic tees are what shirts were made for.

Explanation:

8 0
3 years ago
Define projectile in your own .​
lorasvet [3.4K]

Answer:

a body which was thrown in space ,moves under the influence of gravity only is defined as projectile.

5 0
2 years ago
Read 2 more answers
Light traveling through air strikes the surface of the four different materials below. which material reflects light but doesn't
Dmitriy789 [7]
B....……................
7 0
3 years ago
Read 2 more answers
A packing crate rests on a horizontal surface. It is acted on by three horizontal forces: 600 N to the left, 200 N to the right,
egoroff_w [7]

Answer:

The resultant force would (still) be zero.

Explanation:

Before the 600-N force is removed, the crate is not moving (relative to the surface.) Its velocity would be zero. Since its velocity isn't changing, its acceleration would also be zero.

In effect, the 600-N force to the left and 200-N force to the right combines and acts like a 400-N force to the left.

By Newton's Second Law, the resultant force on the crate would be zero. As a result, friction (the only other horizontal force on the crate) should balance that 400-N force. In this case, the friction should act in the opposite direction with a size of 400 N.

When the 600-N force is removed, there would only be two horizontal forces on the crate: the 200-N force to the right, and friction. The maximum friction possible must be at least 200 N such that the resultant force would still be zero. In this case, the static friction coefficient isn't known. As a result, it won't be possible to find the exact value of the maximum friction on the crate.

However, recall that before the 600-N force is removed, the friction on the crate is 400 N. The normal force on the crate (which is in the vertical direction) did not change. As a result, one can hence be assured that the maximum friction would be at least 400 N. That's sufficient for balancing the 200-N force to the right. Hence, the resultant force on the crate would still be zero, and the crate won't move.

6 0
3 years ago
Other questions:
  • The ultimate source of energy for almost all living organisms is A. animals. B. bacteria. C. plants. D. the Sun.
    10·2 answers
  • The nonmetals include which of the following groups? Use the periodic table to answer the question. Check all that apply. haloge
    8·1 answer
  • Two microwave signals of nearly equal wavelengths can generate a beat frequency if both are directed onto the same microwave det
    9·2 answers
  • A light ray at an incident angle of 32 degrees is struck onto an unknown substance through air (n=1.0). The
    7·1 answer
  • A ball of mass m is thrown straight upward from ground level at speed v0. At the same instant, at a distance D above the ground,
    7·1 answer
  • A main difference between gravitational and electric forces is that electrical forces
    14·1 answer
  • Is that possible to separate the water particles from the air
    14·2 answers
  • What quantity measures the amount of space an object occupies?
    7·1 answer
  • Saturn isn’t the only planet with rings, but they are the most beautiful ones. <br> Fact or Opinion?
    8·1 answer
  • You guys bad news... i failed nnn :c
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!