Using a cathode ray tube, Thomson confirmed thatatoms must have an overall positive charge.

atoms are made of particles that have a negative charge.

electrons in atoms must have varying amounts of energy.

electrons are only found in the nucleus.

Answers

Answer 1

Answer:

Using a cathode ray tube, Thomson confirmed that atoms are made of particles that have a negative charge., therefore the correct answer is option B

What are atomic models?

There are some models that are used to explain the arrangements of subatomic particles inside the atom based on the atomic theory of atom are known as the atomic models.

J.J. Thomson discovered using cathode ray tubes that something emits from the negative plate (referred to as the cathode) and travels towards the positive plate (referred to as the anode), and that when zinc sulfide (also known as a phosphor) coating is applied to the perforated anode, it exhibits green fluorescence at a specific pressure and temperature values.

Thus,by using a cathode ray tube, Thomson confirmed that atoms are made of particles that have a negative charge., therefore the correct answer is option B

Learn more about the atomic models here

brainly.com/question/9145431

#SPJ6

Answer 2

Answer:

Option (B) is correct .i.e. atoms are made of particles that have negative charge.

Further explanation:

Using cathode ray tube, J.J Thomson found that something emits from the negative plate (called as cathode) and goes towards the positive plate (called as anode), and on applying zinc sulfide (also called phosphor) coating on the perforated anode, it shows green fluorescence at some particular values of pressure and temperature.

William Crookes called them the cathode rays as were originated from cathode. Further, Atoms are overall neutral having equal amounts of positive and negative charge as he explained in his plum pudding model.

Although, electrons in atoms have varying energy but this was not confirmed by J.J. Thomson, also electrons can’t be inside nucleus because this would make atoms very unstable.

Some of the properties of those cathode rays are as follows:

(1). They are made up of material particles (they made the light wheels rotate that come in their path).

(2). The green fluorescence was also observed when he putted two more plates perpendicular to the earlier path and the rays followed a curved path towards the new anode.

(3). They has an ionizing property (they ionizes the gas present in the cathode ray tube, through which they pass).

Thus, Option (B) is correct because the cathode rays are emitted from the metallic plate which’s atoms have particles having negative charge.

Learn More:

1. A radio station's channel, such as 100.7 fm or 92.3 fm, is actually brainly.com/question/9527365

2. A very long, uniformly charged cylinder has radius r and linear charge density λ brainly.com/question/1834208

3. The results of Rutherford's gold foil experiment demonstrated that brainly.com/question/1542931

Answer Details:

Grade: High School

Subject: Physics

Chapter: Modern physics

Keywords:

Atoms, cathode, cathode rays, cathode ray tubes, J.J. Thomson, negatively charged particles, nucleus, energy, varying energy, electrons, green fluorescence, phosphor, anode, protons, pressure, temperature, William Crookes.

Related Questions

Two objects with different masses collide and bounce back after an elastic collision. Before the collision, thetwo objects were moving at velocities equal in magnitude but opposite in direction. After the collision, A. the less massive object had gained momentum. B. the more massive object had gained momentum. C. both objects had the same momentum. D. both objects lost momentum.
Which statement describes the interaction between the permanent magnets and the electromagnet in an electric motor? A. The current in the electromagnet is reversed by the permanent magnets B. The current in the permanent magnets is reversed by the electromagnet C. The poles of the permanent magnets are reversed by the electric field of the electromagnet. D. The metal loop in the electromagnet turns because of the magnetic field of the permanent magnets
A bicyclist is in a 50-km race. He says he had an average velocity of 35. What is missing in the cyclist’s velocity? A. units only B. units and distance C. direction only D. units and direction
A motorist traveling at 17 m/s encounters a deer in the road 39 m ahead. If the maximum acceleration the vehicle’s brakes are capable of is −7 m/s 2 , what is the maximum reaction time of the motorist that will allow her or him to avoid hitting the deer? Answer in units of s. 019 (part 2 of 2) 10.0 points If his or her reaction time is 1.21983 s, how fast will (s) he be traveling when (s)he reaches the deer? Answer in units of m/s.
Explain at least two differences between justice system laws and scientific laws.

needhelpp101 Why is the gravitational potential energy of an object 1 meter above the moon’s surface less than its potential energy 1 meter above Earth’s surface? A. The object’s mass is less on the moon. B. The object’s weight is more on the moon. C. The object’s acceleration due to gravity is less on the moon. D. both a and c

Answers

If you remember the formula for potential energy,
then this question is a piece-o-cake.

Potential energy = (mass) x (acceleration of gravity) x (height) .

-- The object's mass is the same everywhere.
-- You said that the height is the same both times.
-- How about the acceleration of gravity ?

Compared to gravity on Earth, it's only 16.5 percent as much on the Moon.
So naturally, from the formula, you'd expect the Potential Energy to be less
on the Moon.

A trombone has a variable length. When a musician blows into the mouthpiece and causes air in the tube of the horn to vibrate, the waves set up by the vibrations reflect back and forth in the horn to create standing waves. As the length of horn is made shorter, what happens to the frequency?A) The frequency will increase or decrease depending on how hard the horn player blows.
B) The frequency will increase
C) The frequency will decrease
D) The frequency will increase or decrease depending on the diameter of the horn.
E) The frequency will remain same

Answers

Answer:

B) The frequency will increase

Explanation:

The length of the instrument is given by

$L=(\lambda)/(2)\n\Rightarrow \lambda=2L$

Wavelength is given by

$\lambda=(v)/(f)$

$(v)/(f)=2L\ or\ L\propto (1)/(f)$

It can be seen that the length is inversely proportional to the frequency.

Here, the length of the trombone is decreasing so the frequency will increase.

If a black hole is truly black and has an escape velocity greater than the speed of light such that no light can escape it, where do the X-rays come from in the black hole candidates so far identified?

Answers

Explanation:

The X- rays are not emitted by the black hole itself but by the from hot gas orbiting around the black hole forming a disc known as accretion disk. When a black hole rips apart a star it attracts gases towards it. The pressure that is generated in the gas heats it up to millions of degrees thus emitting radiation among which x rays are also present which are detected by radio telescopes on the earth.

Which statement about transuranium elements is NOT true?A.) They have an atomic number above 92
B.) They are radioactive
C.) They can be synthesized
D.) They are common in nature

Answers

Transuranium elements are the elements with atomic numbers greater than 92. All of these elements are unstable and decay radioactively into other elements. The statement about transuranium element that is not true is that they are common in nature. The answer is letter D.

The statement about transuranium element that is not true is that they are common in nature. The

answer is letter D.

A projectile is fired in such a way that its horizontal range is equal to 13.5 times its maximum height. What is the angle of projection?

Answers

Maximum height: h = v0² sin² α / 2 g
Horizontal range: x = v0² sin 2 α / g
13.5 v0² sin² α /2 g = v0² sin 2 α /g / : v0²/g
6.75 sin² α = 2 sin α cos α / : sin α
6.75 sin α = 2 cos α / : cos α
6.75 tan α = 2
tan α = 0.2963
α = tan^(-1) 0.2963
α = 16.504° ≈ 16.5°
The angle of projection is 16° 30`.

Answer:

Maximum height: h = v0² sin² α / 2 g

Horizontal range: x = v0² sin 2 α / g

13.5 v0² sin² α /2 g = v0² sin 2 α /g / : v0²/g

6.75 sin² α = 2 sin α cos α / : sin α

6.75 sin α = 2 cos α / : cos α

6.75 tan α = 2

tan α = 0.2963

α = tan^(-1) 0.2963

α = 16.504° ≈ 16.5°

The angle of projection is 16° 30`.

Read more on Brainly.com - brainly.com/question/1596989#readmore

Explanation:

A 12 volt car battery produces more current than a 1.5 volt battery for a TV remote because...A. the tv remote has more kinetic energy.
B. the tv remote has a greater difference in electric potential energy.
C. the car bettery has a greater difference in electric potential energy.
D. the car bettery has more kinetic energy.

Answers

This question is loaded with misleading, marginally meaningful phrases.

A 12V battery produces more current than a 1.5V battery produces,
through the same device, because the potential difference between
the terminals of the 12V battery is 8 times the potential difference
between the terminals of the 1.5V battery.

Of the choices offered, choice 'C' is the closest. But it should say
"electrical potential", NOT "potential energy".

Final answer:

A 12-volt car battery produces more current than a 1.5-volt TV remote battery because it has a greater difference in electric potential energy, resulting in a larger 'push' of electrons and therefore a larger current.

Explanation:

A 12-volt car battery produces more current than a 1.5 volt battery for a TV remote because the car battery has a greater difference in electric potential energy. The electric potential energy is related to the voltage of the battery, or the 'push' it provides to move electrons through a circuit. A higher voltage means a greater 'push' and thus, more current. This is evidenced by the fact that car batteries are designed to start cars, which requires a larger current than operating a TV remote.