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
bagirrra123 [75]
3 years ago
5

Please help! Kiki makes a table to compare the particles in a magnesium atom to those in a magnesium ion. She knows that a magne

sium ion has an electric field that points away from the ion. What values should she use to complete her table?
(The table looks something like this:
Magnesium Atom  Magnesium Ion
Protons (Magnesium Atom)12  (and Magnesium Ion) X
Neutrons (MA)12  (MI)Y
Electrons (MA) 12  (MI) Z
A. X: 14 Y: 12 Z: 12
B.X: 12 Y: 12 Z: 10
C. X: 12 Y: 10 Z: 12 X: 12
D. Y: 12 Z: 14
Physics
2 answers:
Liono4ka [1.6K]3 years ago
7 0
The answer would be D
Alex3 years ago
5 0

Answer:

B.X: 12 Y: 12 Z: 10  

Explanation:

<u>Electric field points away from a positive ion and towards for a negative ion. An atom becomes an ion when it loses or gains electrons. </u>

A positive ion is formed when the electrons are lost to another atom and remaining atom has more number of protons than electrons.

Atomic number of magnesium is 12 which means it has 12 protons and 12 electrons in a neutral atom. atomic mass of magnesium is 24 which means it has 12 neutrons.

A positive magnesium ion must have electrons less than protons. There would be no change in number of protons and neutrons.

<u>From the given options, in option B, number of protons and neutrons is same i.e. 12 where as number electrons is 10 which is less than the number of protons. This means these are the correct options for magnesium ion. </u>

You might be interested in
How do you answer this. Need help ASAP. Offering 20 points !!!
Temka [501]

in this since your volume remains at a constant you'll need to use Gay-Lussacs law, p1/t1=p2/t2.

your temp should be converted in kelvin

variables:

p1=3.0×10^6 n/m^2

t1= 270k

just add 273 to your celcius

p2= ? your solving for this

t2= 315k

then you set up the equation

(3.0×10^6)/270= (x)(315)

you then cross multiply

(3.0×10^6)315=270x

distribute the 315 to the pressure.

9.45×10^8=270x then you divide 270 o both sides to get

answer

3.5×10^6 n/m^2

7 0
3 years ago
How to measure the speed of sound in air?
Leona [35]

STEP ONE:


Let  you and your friend stand as far away as possible from a large reflecting wall and clap your hands rapidly at a regular rate.  


STEP TWO:


Adjust this rate until each clap just coincides with the return of an echo of its predecessor, or until clap and echo are heard as equally spaced.


STEP THREE:


Use a stopwatch to find the time between claps, t. Make a rough measurement of distance to the wall, s. Thus the speed of sound, v = 2s/t

8 0
3 years ago
What does Atomic Collisions mean
stiks02 [169]

Answer:

Atomic and molecular collision processes are the physical interactions of atoms and molecules when they are brought into close contact with each other and with electrons, protons, neutrons or ions. This includes energy-conserving elastic scattering and inelastic scattering.

4 0
2 years ago
A bowling ball with a mass of 8 kg is moving at a speed of 5 m/s. What is its<br> kinetic energy?
natali 33 [55]

Answer:

100J

Explanation:

Kinetic energy=1/2mv^2

Kinetic energy=(1/2 x 8)x5^2

Kinetic energy=4x25

Kinetic energy=100

100J

5 0
3 years ago
A hammer falls off the top roof and strikes the ground with a certain kinetic energy. If it fell from a roof twice as tall how w
Akimi4 [234]

The kinetic energy with which the hammer strikes the ground
is exactly the potential energy it had at the height from which it fell. 

Potential energy is (mass) x (gravity) x (height) .... directly proportional
to height.

Starting from double the height, it starts with double the potential
energy, and it reaches the bottom with double the kinetic energy.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Does this show the geocentric or heliocentric idea of the solar system? Explain the difference
    5·2 answers
  • What is mercury barometer​
    13·1 answer
  • A player kicks a football from ground level with a velocity of 27.0 m/s at an angle of 30o above the horizontal.
    12·1 answer
  • Under most conditions, except ________ change, the resistance of an object is a constant and does not depend on the amount of th
    11·1 answer
  • While wearing rubber-soled shoes, you rub a helium balloon on your sweater. the balloon becomes negative charged. now release th
    9·1 answer
  • What can make something move or cause it to stop
    10·2 answers
  • We spend our lives in visible light without risks to our health. Yet exposure to UV waves in sunlight can cause skin cancer. Wha
    12·2 answers
  • An apple in a tree has a gravitational store of 8J. As it falls, it accelerates constantly until it hits the ground. What is the
    8·1 answer
  • Why does a Tumbling Kelly toy return to its original position? (The oval shape is made out of plastic and lead at the bottom).
    8·1 answer
  • Ayudaaa no se como resolverlo con procedimiento :(
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!