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
Amiraneli [1.4K]
3 years ago
6

PLEASE HELP THIS IS DUE TODAY If an element's atomic mass and atomic number are known, what else can be determined? Give an exam

ple to demonstrate your understanding.
Physics
1 answer:
Fudgin [204]3 years ago
4 0
If you know an element’s atomic number, you will learn the number of protons and electrons. The atomic number is equal to the number or protons and electrons. You can also find the number of neutrons, by subtracting the atomic mass from the atomic number.

For example, Fluorine’s atomic number is 9, and its atomic mass is 19. So, the number of electrons and protons in fluorine is 9. The number of neutrons the is equal to 19-9. Thus, Fluorine has 10 neutrons.

Hope this helps :)
You might be interested in
There is a very slight change in gravity at the top of a mountain. Which property
son4ous [18]

Answer:

The entity that decreases is the Weight.

Explanation:

Every object on the surface of the earth is usually pulled downwards by the action of gravity. The force or weight is W = mg

Now, the farther one gets away from the surface of the earth by climbing a mountain, the further the person is from the Earth's centre of gravity.

We know that the formula for Force of gravity away from the Earth's surface is given by;

F_g = GM1M2/r²

So the greater the distance, the lesser the gravitational force.

Now, the gravitational force equals the weight of the individual.

Thus, the entity that decreases is the Weight of the individual.

8 0
3 years ago
una pelota se deja caer desde la posición de reposo delo alto de un edificio, sin tomar en cuenta la resistencia del aire, calcu
Genrish500 [490]

Answer:

You can not find out an answer with this information

Explanation:

Provide some sort of graph

5 0
3 years ago
a 1500 kg car traveling at 15 m/s to the south collides with a 4500 kg truck that is intially at rest at a spotlight. The car an
harkovskaia [24]

Answer:

3.75 m/s south

Explanation:

Momentum before collision = momentum after collision

m₁ u₁ + m₂ u₂ = m₁ v₁ + m₂ v₂

Since the car and truck stick together, v₁ = v₂.

m₁ u₁ + m₂ u₂ = (m₁ + m₂) v

Given m₁ = 1500 kg, u₁ = -15 m/s, m₂ = 4500 kg, and u₂ = 0 m/s:

(1500 kg) (-15 m/s) + (4500 kg) (0 m/s) = (1500 kg + 4500 kg) v

-22500 kg m/s = 6000 kg v

v = -3.75 m/s

The final velocity is 3.75 m/s to the south.

4 0
3 years ago
Read 2 more answers
What is the momentum of a 8 kilogram cart moving with a speed of 12 meters per<br> second?
lisov135 [29]

Answer:

Explanation:

momentum = mv

m = 8 kg

v = 12 m/s

momentum = 8 * 12 = 96 kg m/s

5 0
3 years ago
The circuit below shows a silicon based transistor incorporated with a potential decider circuit to control the transistor. Dete
Kazeer [188]

Answer:

757.14 (2.d.p.)

Explanation:

CHECK THE IMAGE!! DEATHNOTE AT YOUR SERVICE. 12th Year Physics Kind Of Sucks!

7 0
3 years ago
Other questions:
  • According to Newton's first law of motion, what will an object in motion do when no external force acts on it?
    15·2 answers
  • How many btus of heat energy are needed to raise the temperature of 99.6 lbs of water from 50 °f to 130 °f?
    12·1 answer
  • Viewed moving objects from pond water under his microscope and named them “animalcules”.
    10·1 answer
  • A python can detect thermal radiation from objects that differ in temperature from their environment as long as the received int
    15·1 answer
  • Green plants need light in order to survive structures in the leaves absorb light , which in turn , helps plants make their own
    11·1 answer
  • How do scientists determine the elements present in different stars
    9·1 answer
  • Which planet likely has flowing liquid metallic hydrogen as the source of its magnetic fleld?
    9·2 answers
  • What is an electrical current which comes from a battery
    12·1 answer
  • I have 5 eggs i grabbed one i a cracked 1 i cooked one i ate one how many eggs do i have
    7·1 answer
  • Given below are the names of some objects and materials: Water, basket ball, orange, sugar, globe, apple and earthen pitcher Gro
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!