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
mojhsa [17]
3 years ago
14

Alpha particles used in the Gold foil experiments are Helium atoms that__?

Biology
1 answer:
Harlamova29_29 [7]3 years ago
3 0

Answer:

2. have no negative particle

Explanation:

Helium atoms contains 2 neutrons and 2 protons (or 2 electrons). Thus, it has a mass number of 4 and atomic number of 2.

Alpha particles are heavy and positively charged, which make them to be deflected in a magnetic or electric charge. So, the helium atoms used as alpha particles for the gold foil experiment must have no negative particle.

You might be interested in
Describe how the social justice could help to fight social challenges
pantera1 [17]

Answer:

Different societies have different perceptions and what may be “normal” behavior in one society may be a significant social issue in another society.” ... Social justice can help to fight social challenges by providing society with equal opportunities to overcome its problems.

5 0
3 years ago
Which is true about all unicellular and multicellular organisms?
Lunna [17]
They both reproduce.   
6 0
3 years ago
Read 2 more answers
How are carbohydrate polymers formed? by hydrolysis by dehydration synthesis by replication by transcription
kenny6666 [7]
I think the correct answer from the choices listed above is the second option. Carbohydrate polymers are formed by dehydration synthesis. In this process, <span>monomers combine with each other via covalent bonds to form </span>polymers<span>. Hope this answers the question.</span>
6 0
3 years ago
Read 2 more answers
Occipital and parietal lobes do?
daser333 [38]

Answer:Each side of your brain contains four lobes. The frontal lobe is important for cognitive functions and control of voluntary movement or activity. The parietal lobe processes information about temperature, taste, touch and movement, while the occipital lobe is primarily responsible for vision.

Explanation:

6 0
3 years ago
Select the correct statement about the three-chambered hearts of amphibians and nonbird reptiles. A scheme of blood circulation
Soloha48 [4]

Answer:

The three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart.

Explanation:

In Anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Generally, the cardiac cycle occurs in two (2) stages;

I. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.

II. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.

All amphibians and reptiles except for crocodiles (having four-chambered heart) have three-chambered hearts, which typically comprises of a partially divided ventricle and two atria.

Hence, the correct statement about the three-chambered hearts of amphibians and nonbird reptiles is that, the three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart due to the partially divided ventricle.

7 0
2 years ago
Other questions:
  • How many people died in the atomic bomb
    15·2 answers
  • Which statement best describes the relationship between photosynthesis and cellular respiration?
    12·2 answers
  • In a feeding experiment, ducks are given their choice of white or wheat bread. Which of these is a null hypothesis? Select one:
    13·2 answers
  • Which of these is apart of the geosphere
    14·1 answer
  • At what phase of the cell cycle does the genetic material double?
    15·1 answer
  • Is a dead bird abiotic or biotic
    7·2 answers
  • Where do echinoderms live?
    13·2 answers
  • The rock pocket mouse (Chaetidipus intermedia) is a species of rodent commonly found in the desert of Mexico and the southwester
    14·1 answer
  • 1. Refer to objective #11 ("Discuss how technology has improved our ability to find and use ocean resources.". If you visit the
    12·1 answer
  • What is happening in G2 phase?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!