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
Anna [14]
3 years ago
12

Mercury has an atomic number of 80 and a mass number of 200.

Chemistry
2 answers:
denis23 [38]3 years ago
8 0
C. The mass number is the amount of Protons and electrons there are combined, so 200 - 80 is 120.
steposvetlana [31]3 years ago
3 0

<u>Answer:</u> The correct answer is Option c.

<u>Explanation:</u>

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and number of neutrons present in an atom.

Mass number = Number of neutrons + Number of protons.

We are given:

Atomic number = 80

Mass number = 200

Number of neutrons = Mass number - Atomic number = 200 - 80 = 120

Hence, the correct answer is Option c.

You might be interested in
Calculate the percent by mass of each element in
Zepler [3.9K]
The elements present in Ammonium Nitrate are Hydrogen, Nitrogen, and Oxygen at a ratio of 4:2:3, respectively. Hydrogen weighs in at 1.008 amu, Nitrogen at 14.007, and Oxygen at 15.999. This means that the molar mass would be:

Hydrogen
4 x 1.008 = 4.032 amu

Nitrogen
2 x 14.007 = 28.014 amu

Oxygen
3 x 15.999 = 47.997 amu

Total
4.032 + 28.014 + 47.997 = 80.043 amu

The molar mass of Ammonium Nitrate is 80.043 grams per mole.
3 0
3 years ago
Can someone help me pls
ella [17]

Answer:

B or C

Explanation:

the two maybe try it

4 0
3 years ago
What's the principle of Atomic emission spectroscopy?
slega [8]

Answer:

Explanation:

The theory or working principle of Atomic Emission Spectroscopy involves the examination of the wavelengths of photons discharged by atoms and molecules as they transit from a high energy state to a low energy state. A characteristic set of wavelengths is emitted by each element or substance which depends on its electronic structure.

4 0
3 years ago
A flat metal surface in an electric cell is its _________ terminal
jarptica [38.1K]

Answer:

negative

Explanation:

3 0
2 years ago
Why are tin granules used instead of just a piece of tin?
Soloha48 [4]

The reason why Tin granules is mostly used or preferred than just a piece of Tin because a piece of Tin is plainly metal, in which this will be difficult in having it to be oxidized when it is exposed or in the air rather than Tin granules.

4 0
3 years ago
Read 2 more answers
Other questions:
  • In chemistry, some reactions are linked to other reactions. For example, in the decomposition of potassium chlorate, oxygen and
    11·1 answer
  • Which of the following represent a mixture?
    7·1 answer
  • Explain why according to the kinetic theory of matter there is a problem with the Celsius scale for temperature.
    9·1 answer
  • If you were testing how effective different dish soaps were at cleaning grease off of dishes, thé dependent variable wo
    12·2 answers
  • Is fog homogeneous or heterogeneous? And why?​
    14·1 answer
  • Why is it important to classify living organisms? The DNA of organisms may be more easily analyzed. Organisms may survive longer
    11·2 answers
  • A neutron collides with a nitrogen atom, resulting in a transmutation. Balance the equation. Superscript 1 Subscript 0 Baseline
    6·1 answer
  • Calculate the molarity of a 2.43 mol aqueous NaCl solution with a density of 2.00 g/mL.
    9·1 answer
  • Which consumers are cornivores
    5·2 answers
  • The moving of molecules from areas of high concentration to that of low concentration to gain energy is best described as
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!