0
Atomic Number identifies the following:
- No. of protons (same as the atomic number)
- No. of electrons (mostly same as no. of protons)
- Approximate Atomic Mass (No. of neutrons are roughly equal to or near to no. of protons)
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
If there is a difference between a substance's atomic number and its atomic mass and which measure must be the larger number?
The atomic mass number must be higher as that represent the number of protons and neutrons in an element. Whereas only the number of protons are represented in the Atomic Number.
Boron has an atomic mass of 11 and an atomic number of 5 so the number of neutrons must be?
The atomic number is always the same as the number of electrons in a neutral atom; therefore the element is boron, with an atomic number of 5.
Sodium has an atomic mass of 23 and an atomic number of 11 so the number of neutrons must be?
Sodium does have an atomic number of 11, and if the isotope's atomic mass is 23, the atom would have 11 protons (the atomic number) and 12 neutrons (the atomic mass minus the atomic number). The atom would have 11 electrons, and when ionized it would lose one and take on a charge of +1.
The atomic number of the next heavier noble gas will be?
The next inert gas if discovered whenever its atomic number must be 118.
What two elements make up the atomic number?
All the elements have an atomic number. The atomic number is the number of protons found in the atom of a certain element. And to equalize themselves the atoms will usually have the same amount of electrons as protons so electrons also equal the atomic number. The atomic number is the number on the top of the box on the periodic table for each element. You must have been asking what two subatomic particles make up the atomic number. In that case it would be the proton and the electron because the neutron is so mall that chemist's usually nullify it.
In order to calculate the number of neutrons you must subtract the from the?
Number of neutrons = Mass number - atomic number
What element has an atomic number that is double the atomic number of silicon?
Chromium atomic number is 24 and silicon atomic number is 14 so double of 14 is 28 so it must be nickel. i am not sure but it must be that
If there is a difference between a substance atomic number and its atomic mass which measure must be the larger number?
The atomic mass number must be higher as that represent the number of protons and neutrons in an element. Whereas only the number of protons are represented in the Atomic Number.
If there is a difference between a substance's atomic number and its atomic mass and which measure must be the larger number?
The atomic mass number must be higher as that represent the number of protons and neutrons in an element. Whereas only the number of protons are represented in the Atomic Number.
What info could you use to determine the atomic number of an unknown element that has a mass number of 22?
In order to answer this, the number of neutrons must also be known. Subtract the number of neutrons from the mass number and the result is the atomic number. mass no. - no. of neutrons = atomic number (no. of protons)
Why would an elements atomic number change after transmutation?
Transmutation by definition means the conversion of one element into another, and so it follows that its atomic number must also change. Every element has a unique atomic number.
Is 11 the average atomic number for Sodium?
Yes: to be a sodium atom, an atom must have an atomic number of 11. Therefore, the average of all such numbers will also be 11.
The target element of an x-ray machine must have a high enough atomic number so that?
The target element of an x-ray machine must have a high enough atomic number so that it has a high number of orbitalelectrons for the incident electrons to interact with. The higher the atomic number, the more orbital electrons that element will have. It must also have a high melting point and low rate of evaporation.
Boron has an atomic mass of 11 and an atomic number of 5 so the number of neutrons must be?
The atomic number is always the same as the number of electrons in a neutral atom; therefore the element is boron, with an atomic number of 5.
What does the atomic number tell you about the parts of the element?
The atomic number of an element tells you the number of protons and neutrons that element has. Since an atom has a neutral charge, the number of electrons must equal the number of protons, so you can also tell the number of electrons that element has.
The atomic number of an element indicates the number of .. in an atom?
The atomic number indicates the number of protons in an atom of a particular element. The atomic number must be an integer (counting number), and is unique to that specific element.
The atomic number of an element is what?
The atomic number of an element is how many protons and electrons (you must have the same amount of protons as electrons) an element has in it's nucleus. The Atomic number= number of protons= number of electrons.
