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
Eva8 [605]
3 years ago
7

How many protons and neutrons does Polonium-211 have?​

Chemistry
1 answer:
Stells [14]3 years ago
3 0

Answer:

Protons: 84

Neutrons: 127

Explanation:

The number of protons is the atomic number. The number of neutrons can be found by subtracting the proton number (84) from the isotope number (211)

You might be interested in
The balance reads 221.5 _________ and is measuring an object's _____________. grams; mass Newton's; mass kilograms; mass Newton'
azamat

Answer: grams;mass

Explanation: :)  I took the test.

5 0
2 years ago
The neutrons within the nucleus of an atom have what charge?
vivado [14]

Answer:

the answer is D.

Explanation:

your welcome :)

4 0
2 years ago
Which ecosystem is most resilient to change due to its high diversity?
devlian [24]

Answer:

coral reef

Explanation:

6 0
2 years ago
What volume in L of a 0.724 M Nal solution contains 0.405 mol of Nal?
Setler [38]

Answer:

0.559 L

Explanation:

Step 1: Given data

  • Moles of sodium iodide (n): 0.405 mol
  • Molar concentration of sodium iodide (M): 0.724 M (0.724 mol/L)

Step 2: Calculate the volume of solution (V)

The molarity is equal to the moles of solute divided by the liters of solution.

M = n/V

V = n/M

V = 0.405 mol/(0.724 mol/L) = 0.559 L

4 0
2 years ago
Read 2 more answers
Some compounds are better known by their common names than by their systematic chemical names. Give the chemical formulas of the
kondaur [170]

Explanation:

(a) Dry ice is solid carbon dioxide and its chemical formula is solid CO_{2}.

(b) Sodium chloride is commonly known as salt in daily life. Hence, chemical formula of salt is NaCl.

(c) Laughing gas is also known as dinitrogen monoxide. Hence, its chemical formula is N_{2}O.

(d) Marble (chalk limestone) is chemically known as calcium carbonate. Hence, its chemical formula is CaCO_{3}.

(e) Baking soda is chemically known as sodium bicarbonate. Hence, its chemical formula is NaHCO_{3}.

(f) Ammonia has a chemical formula as NH_{3}.

(g) Water has a chemical formula as H_{2}O.

(h) Milk of magnesia is a base and it is chemically known as magnesium hydroxide. Its chemical formula is Mg(OH)_{2}.

(i) Epsom salt is most often found as heptahydrate of sulfate mineral epsomite. Its chemical formula is usually MgSO_{4}.7H_{2}O. If not present as a heptahydrate then its chemical formula is MgSO_{4}.(H_{2}O)_{x}where, value of x can be equal to 0 to 7.

5 0
3 years ago
Other questions:
  • Dante drew a diagram to show how a wire uses the magnetic field of a magnet to induce an electric current. How can Dante correct
    12·2 answers
  • PLEASE HURRY !! WILL GIVE BRAINLIEST
    8·2 answers
  • 1. What is the mass of 105.00 moles of H20?
    9·2 answers
  • A balloon is filled with 5 moles of helium gas. At a pressure of 1.18 atm and a temperature of 303 K, what volume will the gas o
    8·1 answer
  • Which of the following would be most useful in trying to obtain procedural information to replicate an experiment previously pub
    10·1 answer
  • Select the keyword or phrase that will best complete each sentence about the three general rules of for drawing Lewis structures
    7·1 answer
  • A.
    11·1 answer
  • Two soccer teams, the Bears and the Panthers, played games at the same time in two different locations. The Bears game was playe
    7·1 answer
  • What are ionic bonds???​
    8·2 answers
  • Find the mean of the data.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!