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
Nana76 [90]
3 years ago
9

The atomic number of lead (Pb) is 82. Its mass number is 207. How many protons, neutrons, and electrons does this neutral atom o

f lead (Pb) contain?
Chemistry
1 answer:
AveGali [126]3 years ago
7 0
An element’s atomic number is equal to the number of protons in that element’s nucleus. The mass number is the total number of an atom’s protons and neutrons. Protons have a positive charge; electrons have a negative charge; and neutrons are electrically neutral.

Putting it all together, given that the atomic number of lead is 82, the number of protons a lead atom contains is 82. The number of neutrons would be the difference between 207 and 82, or 125 neutrons. Finally, since you have a neutral atom, there must be an equal number of electrons as the number of protons—that is, 82 electrons.

Thus, you’ve got 82 protons, 125 neutrons, and 82 electrons.
You might be interested in
A compound with an approximate molar mass of
Sauron [17]
G about the answer if I don’t do this I Will fail!!!!!! NO LINKS NO LYING
4 0
2 years ago
6. If you have a bottle with Helium & Nitrogen at room temperature, how does the speed of the particles compare?
Anon25 [30]
I believe it is C, as helium is one of the lightest noble gases making the particles move faster.
5 0
3 years ago
How are the conditions at which phases are in equilibrium represented on a phase diagram?
insens350 [35]

How are the conditions at which phases are in equilibrium represented on a phase diagram?

Image result for How are the conditions at which phases are in equilibrium represented on a phase diagram?

Along the line between liquid and solid, the melting temperatures for different pressures can be found. The junction of the three curves, called the triple point, represents the unique conditions under which all three phases exist in equilibrium together. Phase diagrams are specific for each substance and mixture.

7 0
3 years ago
What became of alchemy after the 1700s
Dvinal [7]
Chemistry developed from alchemy after the 1700s. It was the Alchemist <span>observations and accidental discoveries that brought around modern chemistry.</span>
6 0
3 years ago
Question 8 of 10
MAVERICK [17]

Answer:

6

Explanation:

if you start with 12 atoms of carbon and its called the half life of carbon what is half of 12

8 0
2 years ago
Read 2 more answers
Other questions:
  • You have a gas stored in a rigid container (fixed volume). Explain the relationship between a decrease in temperature, collision
    6·1 answer
  • Which of the following would you expect to see in the death of a star that is less than 0.5 solar mass
    14·2 answers
  • Why is the brcl molecule polar? the shared electrons are closer to cl due to the greater electronegativity of chlorine. bromine
    12·2 answers
  • 7. A 1.50 x 103 kg car accelerates uniformly from rest to 10.0 m/s in 3.00 s.
    6·1 answer
  • why is it is difficult to compress a liquid? a. liquid takes the shape of its container. b. the liquid particles flow away when
    6·1 answer
  • Why do people remove entire forests ?
    14·1 answer
  • The word "atom" means:
    7·1 answer
  • Lithium diisopropylamide [(CH3)2CH]2NLi, referred to as LDA, enjoys many uses as a strong base in synthetic organic chemistry. I
    5·1 answer
  • PLSSSS HELP I NEED ASAP
    13·1 answer
  • What is the formula of sulfur diphosphide
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!