Enter the appropriate symbol for an isotope of calcium-42 corresponding to the isotope notation AZX.Express your answer as a chemical symbol using isotope notation.
40
20Ca
Answers
In AZX notation
A - Represents the mass number of atom.
Mass number = number ofprotons + number of neutrons.
It is shown atthe above of the left side of theatom.
Here it is 42.
Z - Represents the atomic number.
Atomic number = number of protons.
It is shown at the bottom line of the left side of the atom.
Here it is 20.
X - Represents the symbol of the atom.
Here X is Ca.
The symbol for an isotope of Calcium-42 corresponding to the isotope notation is
Isotopes are atoms of the same element that have the same number of protons (atomic number) but different numbers of neutrons (mass number).
In case of Calcium-42,
- The chemical symbol for calcium (X) is Ca.
- The mass number (A) of the isotope is 42, which is the sum of the number of protons and neutrons in the nucleus of the atom.
- The atomic number (Z) of calcium is 20, which is the number of protons in the nucleus of the atom.
Therefore, the chemical symbol for the isotope Calcium-42 is
Learn more about isotopes here:
#SPJ6
Related Questions
the combustion of propane may be described by the chemical equation, C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(g) how many grams of O2(g) are needed to completely burn 40.4 g of C3H8(g)?
A similarity between the forces involved in both ionic and covalent bondingis that bothO A) involve the sharing of electrons.O B) involve the transfer of electrons.O C) involve the attraction of opposite charges.requre same amountof energy toereakther bonds
What is 16.00 kPa in atm?
A metal, M, forms an oxide compound with the general formula M2O. In which group on the Periodic Table could metal M be found?(1) Group 1 (3) Group 16(2) Group 2 (4) Group 17
What is the total number of moles of C that must completely react to produce 2.0 moles of C2H6?
(1) 1.0 mol (3) 3.0 mol
(2) 2.0 mol (4) 4.0 mol
Answers
Answer: The correct answer is option 4.
Explanation:
According to the reaction, 1 mol of is obtained from 2 moles of C gives
Then, 2 moles of will be obtained from:
moles of C =4 moles
Hence, the correct answer is option 4.
to separate the dissolved part of a solution into layers
to separate a mixture by heating it for a long period of time
to separate the undissolved particles of a mixture into layers
Answers
The correct answer is the last answer choice
True
False
Answers
Answers
3 x 10^9
+5.3 x 10^10
------------------
5.6 x 10^10
Answer:
3*10⁹ + 5.3*10¹⁰ = 5.6*10¹⁰
Explanation:
The values are given as exponents:
3*10⁹ and 5.3*10¹⁰
As per the rules:
-Before adding two numbers, all exponents must be the same
-The addition takes place between the numerical portion of the numbers
- The final value is rounded off to the least places in the decimal portion of the given numbers
Therefore, the two numbers to be added are:
Rounded off the final value to 1 decimal place gives:
5.6*10¹⁰
Answers
The formation of these products usually involves THE FISCHER-TROPSCH PROCESS.
The Fischer-Tropsch process refers to a series of chemical reactions which convert hydrogen and carbon monoxide into liquid hydrocarbons in the presence of metal catalysts. The temperature utilized in the process is normally between 150 and 300 degree Celsius. The techniques was developed by Franz Fischer and Hans Tropsch in 1925. The technique is usually used to turn coal into liquid and to turn gases to liquid fuels.
Answers
The two factors that affect the magnitude of the force are magnitude of force and distance of line of action of force.
What is force?
Force is defined as a cause which is capable of changing the motion of an object. It can cause an object which has mass to change it's velocity. It is also simply a push or a pull . It has both magnitude as well as direction.Hence, it is a vector quantity.
It has SI units of Newton and is represented by'F'.Newton's second law states that force which acts on an object is equal to momentum which changes with time. If mass of object is constant, acceleration is directly proportional to net force acting on an object.
The concepts which related to force are thrust and torque .Thrust increases the velocity of an object and torque produces change in rotational speed of an object.
Learn more about force,here:
#SPJ2