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
uranmaximum [27]
3 years ago
12

How many neutrons does element X have if its atomic number is 22 and its mass number is 96?

Physics
1 answer:
Dovator [93]3 years ago
6 0
1. The mass number is protons + neutrons = mass number. In this case, we have protons + neutron = 164.The atomic number is simply the number of protons so we have 43 + neutrons = 164. Subtracting 43 from both sides we get neutrons = 121.
2.  = 4

3. The number of protons in the nucleus does not equal the number of neutrons. 

A=mass number: 
Z=atomic number (= number of protons)
N=number of neutrons:

A=Z+N

If the number of protons in the nucleus is equal the number of neutrons , we would have an even mass number; because Z=N=x; then A=x+x=2x  (this is always an even number) but  23 is an odd number, therefore the number of protons in the nucleus does not equal the number of neutrons.
You might be interested in
Why is it safe to watch an eclipse of the Moon but not an eclipse of the Sun
gavmur [86]
A solar eclipse occurs when the moon crosses in front of the Sun, blocking some or all of its rays. A lunar eclipse happens when the moon is directly behind the earth, blocking the moon from receiving light. The only light comes from the light on earth's reflected shadow.

You can look at a lunar eclipse because there is very little light or none at all. You can't look at a solar eclipse because you are looking directly at the sun unless it is complete. Before totality, only some of the Sun is blocked, causing your pupils dilate to let in more light. Since they do this, more of the Sun's rays can be let in to the eye, which effectively allows your eyes to burn. 

Some doctors and eye care specialists say that after someone complains of blindness after looking at a solar eclipse unaided, they can see what the Sun and moon looked like at the time that they looked at it, as it is burned onto their retinas. 
8 0
4 years ago
Which of the following represents an image that is located in front of a lens?
Lostsunrise [7]
-di represents an image in front of a lens
5 0
3 years ago
Read 2 more answers
Wood is an example of a translucent material.<br> True<br> False
Svetradugi [14.3K]
False, wood is a solid structure that is not see through
3 0
3 years ago
When the air resistance can be ignored the velocity of an object dropped initially from rest is given by the following equation
ad-work [718]

Answer:

I am confused of your question. Do you want final velocity? To get final velocity, use (initial V)+(Gravity*Time)

Explanation:

8 0
3 years ago
Read 2 more answers
What are the different types of simple machines and some of their functions?
Bogdan [553]

Answer:

Simple machine. Simple machine, any of several devices with few or no moving parts that are used to modify motion and force in order to perform work. The simple machines are the inclined plane, lever, wedge, wheel and axle, pulley, and screw. simple machinesSix simple machines for transforming energy into work.

Explanation:

hope this helps

4 0
3 years ago
Other questions:
  • Select the correct answer.
    10·2 answers
  • Samantha is 1.1 m tall on her eleventh birthday and 1.21 m tall on her twelfth birthday. By what factor has her height increased
    7·1 answer
  • (Will give brainliest answer)
    7·2 answers
  • 3. A force of 200 N is applied to an object of area 2 sq.m . the pressure will be<br>​
    13·2 answers
  • What component is brass and copper
    5·1 answer
  • In the sum A→+B→=C→, vector A→ has a magnitude of 13.6 m and is angled 40.2° counterclockwise from the +x direction, and vector
    12·1 answer
  • Which term best describes how fast and in what direction an object is moving at a particular moment? Question 2 options: acceler
    15·1 answer
  • Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical
    11·1 answer
  • Find preposition of the following lines
    9·1 answer
  • Which of the following are benefits you can receive from exercising at higher heart rates? Question 5 options:
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!