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
Arlecino [84]
3 years ago
12

After 1911, most scientists accepted the theory that the nucleus of an atom was very dense and very small and had a positive cha

rge. What led scientist to accept this theory?
A) Dalton’s theory of the atom was over 100 years old

B) Scientists before 1911 used the scientific method of inquiry improperly

C) A new model proved that the quantum theory of the atom was inaccurate

D) Rutherford did an experiment firing alpha particles at a thin piece of gold foil
Chemistry
1 answer:
Scorpion4ik [409]3 years ago
4 0

Answer:

I believe it is D

Explanation:

since Rutherford's explanation, when he made it in 1911, was that scattering was caused by a hard, dense court to centre of the Adam, which is the nucleus and he used Alpha particles to observe the scattered backwards from a gold foil

You might be interested in
a set of pulleys is used to lift a piano weighing 1,000 netwons. the piano is lifted 3 meters in 60 seconds. How much power is u
DENIUS [597]

P = W/t

P = F.s/t

P = 1000.3/60

P = 50 watt

6 0
2 years ago
Read 2 more answers
HELP!!!!!!!!!!!!!!!!!!! 100 POINTSSSSSSSSSSSSSS
e-lub [12.9K]

Answer:

<em><u>The three-dimensional region of space that indicates where there is a high probability of finding an electron.</u></em>

7 0
3 years ago
Read 2 more answers
Consider the nuclear equation below. 222/66Rn--&gt;218/?Po+4/2He Which is the missing value that will balance the equation? 84 8
erastovalidia [21]
<h3>Answer:</h3>

84

<h3>Explanation:</h3>
  • The nuclear equation shows the decay of Radon-222 by emitting an alpha particle to form polonium-218.
  • When a radioactive isotope undergoes alpha-decay, the mass number is decreased by 4 while the atomic number decreases by 2.
  • Therefore, the complete nuclear equation is;

²²²₈₆Rn → ²¹⁸₈₄Po + ⁴₂He

  • The atomic number of Radon-222 decreases from 86 to 84 while the mass number decreases from 222 to 218, forming polonium-218.
4 0
4 years ago
Read 2 more answers
Energy is the work that done by a force acting through a distance And involves motion
SIZIF [17.4K]

Answer:

true

Explanation:

energy is the energy to do things

and there is a force in our bodies wich is giving out energy through a distance

7 0
3 years ago
Help (also tell me what the phenotype and genotypes are)
ad-work [718]

Answer:

genotype are the organism's hereditary information for example DNA

phenotype are the organism's physical characteristics for example your eyes or hair

or how your nose looks

7 0
3 years ago
Other questions:
  • Which of these is the smallest volume 500mL, 2,500 cm3, 5.5•10-1, 25 m3
    11·1 answer
  • Each degree on the Kelvin scale equals:
    6·2 answers
  • It is proposed to use Liquid Petroleum Gas (LPG) to fuel spark-ignition engines. A typical sample of the fuel on a volume basis
    10·1 answer
  • Convert $1.89/gal to dollars per liter
    7·2 answers
  • Adding hydrogen atoms to an unsaturated fatty acid will make it __________.
    9·2 answers
  • Which causes waves in the ocean to occur?​
    11·1 answer
  • Which of the following quantities contains the greatest number of particles?
    12·2 answers
  • The greater the [H*], the stronger the acid.<br> True<br> False
    11·1 answer
  • Calculate the change in internal energy of the following system: A 100.0-g bar of gold is heated from 25∘C to 50∘C during which
    12·1 answer
  • Can u answer all of em
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!