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
poizon [28]
3 years ago
5

What characteristic of an atom determines its properties

Physics
1 answer:
Tema [17]3 years ago
4 0
<em>The correct answer to this question is actually letter B.</em> To expound on this, let's discuss each choice.

A. The particles inside the nucleus, protons and nucleus, don't actually dictate the properties of substances because the nucleus constitutes very little space compared to the rest of the atoms.

B. It is the electrons, especially the valence electrons, that dictate the property because these are the electrons that take part in chemical reactions.

C. The atomic number is the number of protons. It has nothing to do with the neutrons.

D. The atomic mass only tells the weight of each atom. The weight does not dictate the chemical properties of a substance.
You might be interested in
When I hurricane nearest land what causes the most damage
Svetllana [295]
Hey there!

When a hurricane is near land the wind and rain cause the most damage.

Hope it helped!
4 0
3 years ago
Read 2 more answers
a spiral spring of natural length 10.0cm has a scale pan hanging freely in its tower ends . When an object of mass of 20g is pla
weqwewe [10]

Answer:

Explanation:

There seems to be a typo in the problem statement.  It says the spring stretches to a shorter length after more mass is added.  Please check the problem statement.  I'm going to do the calculations assuming that the first length should be 11.80 cm and the second length should be 12.05 cm.

Hooke's law states that the force needed to compress or extend a linear spring is:

F = kΔx, where k is the stiffness and Δx is the displacement.

When a 20g object is placed in the pan, the spring stretches to a length of 11.80 cm.  The force of the spring is counteracting the weight of both the pan and the object. Therefore:

(m + 0.020) g = k (0.1180 - 0.100)

And when another 30g object is placed in the pan, the spring stretches to a length of 12.05 cm.

(m + 0.020 + 0.030) g = k (0.1205 - 0.100)

We now have two equations and two variables.  If we divide the second equation by the first equation:

(m + 0.050) / (m + 0.020) = (0.1205 - 0.100) / (0.1180 - 0.100)

(m + 0.050) / (m + 0.020) = 0.02050 / 0.0180

0.0180 (m + 0.050) = 0.02050 (m + 0.020)

0.0180 m + 0.0009 = 0.02050 m + 0.00041

0.00049 = 0.0025 m

m = 0.196

The pan has a mass of 0.196 kg, or 196 g.

4 0
3 years ago
The earth's magnetic field deflects the flow of current from?
alexgriva [62]
I don't really know the answer but maybe north pole and south pole?
7 0
3 years ago
50 POINTS!!!!!!!!<br><br> In a GUT (Grand Unified Theory), what is "unified"?
melomori [17]

Subatomic particles

Explanation:

Grand unification theory or GUT is a model that tries to describe the universe.

7 0
3 years ago
A house brick has a volume of 1900 cm³ and a weight in air of 80N.What is its apparent weight in water?The density of water is 1
Shtirlitz [24]

Answer:

61 N

Explanation:

We'll begin by calculating the mass of the brick when placed in water. This can be obtained as follow:

Volume of brick = 1900 cm³

Density of water = 1 g/cm³

Mass of brick in water =…?

Density = mass / volume

1 = mass of brick in water / 1900

Cross multiply

Mass of brick in water = 1 × 1900

Mass of brick in water = 1900 g

Next, we shall convert 1900 g to Kg.

1000 g = 1 Kg

Therefore,

1900 g = 1900 g × 1 Kg / 1000 g

1900 g = 1.9 Kg

Next, we shall determine the weight in water. This can be obtained as follow:

Mass (m) = 1.9 Kg

Acceleration due to gravity (g) = 10 m/s²

Weight (W) =?

W = m × g

W = 1.9 × 10

W = 19 N

Thus, the weight of the brick in water is 19 N.

Finally, we shall determine the apparent weight of the brick in water. This can be obtained as follow:

Weight in air = 80 N

Weight in water = 19 N

Apparent weight =?

Apparent weight = weight in air – weight in water

Apparent weight = 80 – 19

Apparent weight = 61 N

3 0
3 years ago
Other questions:
  • How many wavelenghts of a wave pass a point if the frequency of the wave is 4 hertz?
    9·1 answer
  • How do the weights of the tug of war teams affect the match
    6·2 answers
  • What is Newton's Law
    11·1 answer
  • A crate pushed along the floor with velocity vâ i slides a distance d after the pushing force is removed. if the mass of the cra
    8·1 answer
  • 6 jam jars of volume 0.37m3 are filled with Jam. An empty jam jar has a weight 200g each. The weight of all 6 jars filled with j
    12·1 answer
  • In order for work to be done, what three things are necessary?
    14·2 answers
  • 5.) A 2000 N bear slides down a tree at a constant velocity, what is the
    12·1 answer
  • Which of the following is an observation only? *
    9·1 answer
  • As a rubber band and moves forward, which of the following is true
    7·1 answer
  • A horizontal force of 12 Newtons is applied to a 4.0 kg box that slides on a horizontal surface. The box starts from rest moves
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!