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
masya89 [10]
3 years ago
5

How many neutrons does 85Rb have?

Chemistry
1 answer:
Leona [35]3 years ago
8 0

Answer:

Rb has two isotopes - one having 48 neutrons and the other having 50 neutrons. The atomic mass number of an isotope is the sum of the protons plus neutrons in the nucleus, so the two stable isotopes of Rb are designated 85Rb and 87Rb (their atomic mass numbers).

HOPE THIS HELPED!!!!!!!!!!!!!!! XDDDDDDDDDD

You might be interested in
This data was collected after conducting an experiment about the amount, in liters, of water a specific plant needs per month. A
Effectus [21]

Answer:

1.1 liters

1.2 liters

1.5 liters

Explanation:

Precision in data refers to how close the experimental values of an experiment are to one another irrespective of the true or accepted value. In other words, a set of values are said to be PRECISE if they are close to one another.

In this case, data was collected after conducting an experiment about the amount, in liters, of water a specific plant needs per month. However, according to the set of experimental values provided, only 1.1 litres, 1.2litres and 1.5litres are close to one another and, hence, are said to be PRECISE even if they are not close to the accepted value of 6litres.

4 0
3 years ago
Read 2 more answers
List two structures that have similar functions in plants and animals.how are they different
Aleks [24]
I hope this can help you

6 0
3 years ago
b. Determine the molecular formula of a molecule with an empirical formula NH2and a molar mass of 32 g/mol.
VladimirAG [237]
I'm taking this lesson now, so imma help u ( if u need anything else ask me)

so given Molar mass= 32 g/mol
molar mass= (empirical formula) n
32 = (14x1 + 2x1) n
32 = 16 n , so n= 2
so, molecular formula= N2H4
5 0
3 years ago
Why have we not drilled or mined deeper into earth ??
alexdok [17]
<span>Scientists have determined that the center of the earth is 6371 km below the surface. But how has this been determined? Many people might answer that question by saying scientists can drill into the Earth with machines. However, the drilling rigs that scientists use can only drill about 20 km in the Earth which is not very deep! In other words, we can only drill into upper part of the crust of the earth. Extremely high temperatures and pressures within the Earth make drilling into it very difficult</span>
8 0
3 years ago
John roller skates 48 km in 3 hours. What is his average speed in kilometers
Nadya [2.5K]

Answer:16km/hr

Explanation:

48km/3hr= 16km/hr

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is a correctly written chemical equation that demonstrates the conservation of mass?
    6·1 answer
  • Problem PageQuestion Aqueous hydrochloric acid HCl will react with solid sodium hydroxide NaOH to produce aqueous sodium chlorid
    10·1 answer
  • 15 g of gold and 25 g of silver are mixed to form a single-phase ideal solid solution.
    14·1 answer
  • What factors affect the temperature of sea water
    13·1 answer
  • What is the name of the instrument used to measure the pressure of a contained gas? *
    6·1 answer
  • What properties would you expect to be different for the two enantiomers of 2-pentanol?
    14·1 answer
  • What concentrations of acetic acid (pKa = 4.76) and acetate would be required to prepare a 0.15 M buffer solution at pH 5.0? Not
    8·1 answer
  • g A chemist combines 59.9 mL of 0.282 M potassium bromide with 15.4 mL of 0.512 M silver nitrate. (a) How many grams of silver b
    8·1 answer
  • A box sits on a table. An arrow labeled F subscript N points up. An arrow labeled F subscript g points down. An arrow labeled F
    5·1 answer
  • Which formulas could represent the empirical formula and the molecular formula of a given compound?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!