Answer: The atom with 6 protons and 6 neutrons and an atom with 6 protons and 7 neutrons are the isotopes of same element.
Explanation:
Isotopes are defined as the chemical species that belong to the same element but differ in their mass number.
This also means that the chemical species have same number of protons and electrons but different number of neutrons.
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 neutrons that are present in an atom.
Mass number = Number of protons + Number of neutrons
From the given options:
The elements having same number of protons will be the isotopes of same element.
Hence, the atom with 6 protons and 6 neutrons and an atom with 6 protons and 7 neutrons are the isotopes of same element.
b. change in temperature
c. change in particle size
d. change in concentration
Answer:
Particle Size
Explanation:
Educere/ Founder's Education Answer
Power is not a vector quantity in the provided query. The correct answer is option c.
A vector quantity is a physical quantity with magnitude as well as direction. Displacement, velocity, acceleration, and force are the types of vector quantities.
In contrast, power is a scalar quantity, which means it has simply magnitude and no direction. Power is measured in watts (W) or joules per second (J/s) and is defined as the rate at which work is done or energy is moved.
Therefore, the physical quantity that is not a vector quantity is option c, power.
Learn more about vector quantity here:
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The given question is incomplete. The complete question is:
Which of the following is not a vector quantity? Select one:
a. acceleration
b. displacement
c. power
d. velocity.
Answer: radioactive isotopes may be used to Trace complex chemical processes.
Radioactive isotopes can be used to study complex chemical processes, such as determining the age of ancient artifacts using carbon dating.
Radioactive isotopes can be used to study complex chemical processes. This is because some isotopes emit radiation that can be detected and measured, allowing scientists to track the movement and transformations of chemicals in a reaction. For example, carbon-14 is a radioactive isotope that can be used to determine the age of ancient artifacts through a process called carbon dating. By measuring the amount of carbon-14 remaining in an object, scientists can calculate how long it has been since the carbon-14 was last replenished.
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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
The correct answer is the last answer choice
In gamma decay, no change in proton number occurs, so the atom does not become a different element
It is impossible to divide an atom into smaller parts.
There are electrically neutral particles inside atoms.
Atoms contain small, negatively charged particles.
Answer: The correct statement is atoms contain small, negatively charged particles.
Explanation:
J.J.Thomson was a scientist which discovered electrons that are present in an atom.
He did an experiment and gave a model for this. The experiment conducted by him was Cathode Ray experiment and the model given by him was Plum pudding model.
From cathode ray, he showed that the cathode ray was composed of a negatively charged particles and named it as electrons. From plum pudding experiment, he said that the electrons are embedded in the atom. These particles carry negative charge and are very small as compared to the atom.
Hence, the correct statement is atoms contain small, negatively charged particles.