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
ziro4ka [17]
3 years ago
10

Atom A has an atomic number of 19 and mass number of 40. Atom B has an atomic number of 20 and a mass number of 40. Which of the

se is an accurate statement?
A) Atom A has more protons than Atom B.
B) Atom A has one less proton and one more neutron than Atom B.
C) Atom A has an extra nucleon compared to Atom B.
D) Atom A has one more proton and one more electron than Atom B.
Biology
2 answers:
marin [14]3 years ago
8 0
<span>First, the atomic number is equal to the number of protons. Also, the mass number is protons plus neutrons, as electrons weigh so little that they are not included. So Atom A has 19 protrons and 21 neutrons, while Atom B has 20 protons and 20 neutrons. Answer A and B are not true because Atom A has 1 less proton than Atom B. Answer C is not correct because nucleons are either protons or neutrons, which both atoms have an equal number of, as they have a mass of 40. Therefore, the answer must be B.</span>
Marina CMI [18]3 years ago
5 0

Answer:

B) Atom A has one less proton and one more neutron than Atom B.

Explanation:

Atom A has the same mass but one less proton. So, Atom A has one less proton and one more neutron than Atom B.

You might be interested in
Diphtheria causing agent mode of Transmission, incubation period,symptoms and preventive measures and cure ​
Sedbober [7]

Diptheria is a serious infection mainly caused by a specific type of bacteria. This diseases is associated to different symptoms.

<h3>What is the causing agent?</h3>

This disease is caused by Corynebacterium diphtheriae, which is a specific type of bacteria. Moreover, this bacteria produces toxins and this is the cause of the symptoms.

<h3>How is it transmitted?</h3>

This can be transmitted through saliva droplets from one infected person to a healthy person. Usually, symptoms appear within 5 days after getting the bacteria.

<h3>What are the symptoms?</h3>

Although this disease has many symptoms, the most important ones are sore throat and gray lining on the throat and nearby areas.

<h3>How to prevent it or treat it?</h3>

Antibiotics and antitoxins are often used, but the best is to prevent it through vaccination.

Learn more about diphtheria in: brainly.com/question/13061650

#SPJ1

7 0
2 years ago
Read 2 more answers
A two-headed muscle (part of hamstring)<br> a. Vastus lateralis<br> b. Biceps femoris
DiKsa [7]

Answer:

I believe this is the Biceps femoris

Explanation:

6 0
3 years ago
What is the relationship between temperature and kelp productivity?
jasenka [17]

Answer: As the temperature of the water goes up, the amount and spatial extent of the kelp goes down. These changes could result in dramatic habitat loss leading to reduced ecosystem productivity and the extinction of many invertebrate species.

3 0
3 years ago
Before exploring energy balance and its effect on weight, you must first be able to use the vocabulary effectively.
valkas [14]

Answer:

1. When the number of calories a person consumes is equal to the number of calories he or she burns in a day, that person's body is in Energy Balance.

2. Someone who is in Positive Energy Balance eats more calories in a day than he or she bums.

3. Negative Energy Balance occurs when the number of calories a person bums in a day is greater than the amount he or she consumes.

4. Weight management involves applying strategies that allow someone to keep his or her body weight within a healthy.

5. The Basal metabolic rate is the amount of energy uses in order to perform its basic physiological functions.

6. The Thermic effect of food refers to the number of calories burned in order to digest absorb, metabolze, and store food.

7. The Lean body mass refers to his or her total body - fat mass.

Explanation:

This group of statements are related to body weight, the balance between the energy we consume through food and all the energy we burn through excercise and different activities, such as only mantaining our body temperature and normal processes.

3 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST Jaiden is writing a report about the structure of an atom. She says an atom has three main part
Musya8 [376]

Answer:

disagree, an atom has two main parts. the nucleus & electron cloud. Atoms have three subatomic particles: protons, neutrons, and electrons.

Most atoms have three different subatomic particles inside them.

Explanation:

6 0
2 years ago
Other questions:
  • Differentiate between "lock-&amp;-key" and "induced fit"
    13·1 answer
  • Carrying capacity is blank
    5·1 answer
  • Describe the differences between a positive and negative charge
    5·2 answers
  • Where are you likely to find cartilage?
    10·1 answer
  • PLEASE ANSWER I WILL MAKE U BRAINLIEST!!!
    13·1 answer
  • Why does our body need oxygen
    6·2 answers
  • Is my epic 7 inch pleco cute?
    13·2 answers
  • Will give a lot of points and crown
    9·2 answers
  • Who rediscovered Aristarchus's model of a heliocentric solar system?
    9·1 answer
  • microorganisms occur everywhere in nature and have several requirements to grow. what is one of these requirements? select all t
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!