0
Add your answer:
Earn +20 pts
Why do two isotopes of an element have the same atomic number but differnent mass number?
Because the atomic number is the number of protons in an element. If you change the atomic number you will have a completely different element. The mass number changes because the number of neutrons is different.
How is the atomic mass changed?
When the number of neutrons changes, the atomic mass will change.
Which of the following determines the identity of an element atomic number mass number atomic mass or overall change?
atomic number
Can the atomic number of an particular element ever change?
No, the atomic number of an element can't change. Because, we can identify an element by its atomic number and atomic mass. and hence they have been arranged in the periodic table on the basis of their mass number and atomic mass so , it couldn't be changed. Every element has a fixed atomic number..
Can the atomic mass of a particular element ever change?
yes
When the atomic mass changes does the element change also?
no
Why do two isotopes of an element have the same atomic number but differnent mass number?
Because the atomic number is the number of protons in an element. If you change the atomic number you will have a completely different element. The mass number changes because the number of neutrons is different.
How is the atomic mass changed?
When the number of neutrons changes, the atomic mass will change.
Which of the following determines the identity of an element atomic number mass number atomic mass or overall change?
atomic number
Can the atomic mass of a particular element ever change?
yes
How does Neutron emission from a nucleus affect an element?
It changes only the atomic mass.
Can the atomic number of an particular element ever change?
No, the atomic number of an element can't change. Because, we can identify an element by its atomic number and atomic mass. and hence they have been arranged in the periodic table on the basis of their mass number and atomic mass so , it couldn't be changed. Every element has a fixed atomic number..
What is the atomic mass for magnesiam?
Magnesium is a meta element. Atomic mass of it is 24.
What is the difference between atomic mass number and atomic number?
Atomic mass number is the average atomic mass for that element, which is : All the isotopes' masses known for that element averaged up. Atomic number is the element's "identity", the number of protons the element and all its isotopes have. All the isotopes of a given element will have different number of electrons and neutrons, but the protons of the element never will change.
Within a horizontal row of the periodic table how does mass change?
Within a horizontal row, mass of the elements increases as you go to the right. This is because as the atomic number increases, so does the number of protons and electrons. This means that the total mass of the atom also increases because protons weigh approximately 1 atomic mass unit.
Which element has the atomic mass of 126.9045?
The element is Iodine (I). It has an atomic mass of about 126.9.
What is the difference between the atomic number and the atomic mass?
Atomic mass is the mass of 1 mole of the element. Atomic number is the number of protons the element has
