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
NARA [144]
3 years ago
11

Why is nucleus of an atom charged is negatively charged?

Chemistry
1 answer:
Damm [24]3 years ago
3 0

Answer:

Charge is caused by a flow of electrons, since electrons are around the nucleus they can be lost or gained by atoms. When an atom gets charged, it gains a charge, that is, it gains an electron. Since electrons are negatively charged, when an atom gains one, it also becomes negatively charged.

You might be interested in
What is the frequency of radiation.
Ivenika [448]

RADIATION. Radio waves, microwaves, IR, light, UV, x-rays, GAMMA waves etc are ALL Electromagnetic radiation. The difference between ALL the above is the frequency, I.E. The number of waves per second. The higher the frequency the more energy.

5 0
3 years ago
What value must be known if the accuracy of an experiment is to be determined​
andrezito [222]

To evaluate the accuracy of a measurement, the measured value must be compared to the correct value. To evaluate the precision of a measurement, you must compare the values of two or more repeated measurements.
7 0
3 years ago
Barium nitrate has the formula Ba( NO3)2. Which statement is true about barium nitrate?
OLga [1]
I found these four statements for that question:

Each molecule contains four different elements.

Each molecule contains three atoms.

Each molecule contains seven different bonds.

Each molecule contains six oxygen atoms.

The last one is true. Each molecule contains six oxygen atoms.
The number to the right of O and of (NO3) ares subscripts.


The chemical formula uses subscripts to indicate the number of atoms.



The subscript 2 in (NO3)2 means that there are two NO3 radicals.


And the subscript 3 to the right of O means that each NO3 radical has three atoms of O.

Then, the number of atoms of O is 2 * 3 = 6.


So, the true statement is the last one: each molecule of Ba (NO3)2 has six atoms of O.


From that molecule you can also tell:

- Each molecule contains one atom of barium

- Each molecule contains two atoms of nitrogen

- Each molecule contains two NO3 radicals

4 0
2 years ago
1. What is the potential energy of a 8 kg ball that is at a height of 20 m?
weqwewe [10]

Answer:

1. 1568 J

2. 0 J

3. 1176 J

Explanation:

PE = mgh

(PE = Potential Energy) = (m = mass)(g = gravitational force which is 9.8)(h = height)

1. (3)(9.8)(20) = 1568 J

2. PE = (3)(9.8)(0) = 0 J

3. (5)(9.8)(24) =  1176 J

4 0
2 years ago
One difference between molecular formula and molecular weight.​
jek_recluse [69]

Answer: The formula mass (formula weight) of a molecule is the sum of the atomic weights of the atoms in its empirical formula. The molecular mass (molecular weight) of a molecule is its average mass as calculated by adding together the atomic weights of the atoms in the molecular formula.

Hope this helps.... Stay safe and have a great weekend!!!!! :D

3 0
2 years ago
Other questions:
  • A student lives in a place that receives lots of snow and ice during the winter. The student has observed that the highway depar
    8·2 answers
  • What is the result of multiplying 2.5 times 10 to the power 10 by 3.5×10 to the power of -7
    15·1 answer
  • Ammonia (nh3) is widely used as a fertilizer and in many household cleaners. how much ammonia is produced when 6.44 mol of hydro
    11·1 answer
  • Which of the following is the correct expression for the rate of the following reaction
    14·1 answer
  • What is the correct way to represent 5600 L using scientific notation
    15·1 answer
  • How do the chemical properties of oxides change from left to right across a period? From top to bottom within a particular group
    8·1 answer
  • Crystalline solids ________. a. have their particles arranged b. randomly exist only at very low temperatures c. exist only at h
    12·1 answer
  • name some examples of chemical solutions and maybe give a clear explanation as to what chemical solutions are ​
    8·1 answer
  • Provide background information about different types of chemical reactions.
    11·1 answer
  • If brainly deletes one more of my answers when im just answering the question correctly im suing bro
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!