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
Llana [10]
3 years ago
5

The isotope of an atom containing 31 protons and 39 neutrons suddenly has two neutrons added to it. what isotope is created? loo

k up the peridoic table to find which element has 31 protons.
Gallium-72
yttrium-41
yttrium-72
Gallium-41
Chemistry
2 answers:
Fed [463]3 years ago
5 0
It is gallium look it up its what google says
Rashid [163]3 years ago
3 0

Answer: Gallium-72

Explanation:

Atomic number is defined as the number of protons or number of electrons that are present in an atom. It is characteristic of an element.

Atomic number = Number of electrons = Number of protons = 31

Thus the element with atomic number of 31 is Gallium.

Mass number is defined as the sum of number of protons and neutrons that are present in an atom.

Mass number = Number of protons + Number of neutrons

There were 39 neutrons and then 2 more were added , thus there are 39+2 = 41 neutrons

Thus mass number = 31 + 41 = 72

Thus the element will be gallium with 72 mass number.

You might be interested in
How many moles are in 4.6 x 10^19 atoms? <br><br> *#27 is the question
velikii [3]
There are 0.000076 moles in 4.6 x 10^19 atoms.
3 0
3 years ago
Which of the following describes a response to external stimuli?
Pavlova-9 [17]
The correct answer is A.

Hunger, chemical imbalance, and blood levels are all internal issues. Cat dander on the other hand is not something the body creates or and is something in the environment.  
Thus, your answer is A. 
3 0
3 years ago
Read 2 more answers
Neptune's Triton is being pulled closer and closer to the planet as it orbits. What will likely be a result of this gravitationa
Ksenya-84 [330]

Answer:

the planet's gravity will cause Triton to fly into Neptune

Explanation:

Gravitational force is a force of attraction between two bodies with considerable masses.

One of the mass tends to pull the other to it's center.

As the force of gravity between two bodies grow, the more massive body will be drawn to the other one.

  • The effect is that one body will eventually collide with the other.
  • Since the planet pulls very hard on its moon
  • On the long run, we can expect Triton to fly into Neptune in the foreseeable future.
3 0
3 years ago
How would you compare a health care system in Ancient Egypt and a interdisciplinary health care team?
dezoksy [38]

Answer:

A

Explanation:

7 0
3 years ago
What do helium (He), neon (Ne), and argon (Ar) have in common?
IrinaK [193]

Answer:

The answer is: D

Explanation:

A. They have the same number of electron energy shells.  Is false, all the elements are in different periods so, they have different number of lectron energy shells.

B. They are all Halogens.  No, is wrong, halogens are F, Cl ,Br

C. They have the same number of electrons.  is wrong, if they had the same number of electrons they must be they same element and they aren't the same.

D. They are all Noble gases. Yes, it's true they are noble gases, they are the first group in the periodic table from the right.

6 0
3 years ago
Read 2 more answers
Other questions:
  • An igneous rock that contains mostly proxene and olivene has ___.
    6·1 answer
  • A concept map for four types of intermolecular forces and a certain type of bond is shown.
    11·1 answer
  • What does a bomb calorimeter do?
    8·2 answers
  • The boiling point of a substance is a chemical property true or false​
    14·2 answers
  • How many electrons are there in the only energy level of helium, a noble gas? * Two Three Six Eight​
    9·1 answer
  • What types of reactions must occur between amino acids in order for protein molecules to be formed?
    10·1 answer
  • Which of these represent an unbalanced equation with the correbt chemical formuals
    15·1 answer
  • At 1.4 atm of pressure a gas has a volume of 111 ML at what pressure will the gas have a volume of 85 ML.
    8·1 answer
  • A rock _____ can get polished from water running over it?
    10·2 answers
  • Written in this form, carbon-13, what does the 13 represent and what is the atomic number?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!