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How is the mass number related to the number of protons and neutrons and atoms has?
The mass number of an atom is the sum of its protons and neutrons. It represents the total number of nuclear particles (protons and neutrons) in the atom's nucleus. The number of protons in an atom determines its element, while the number of neutrons can vary to create different isotopes of the element.
The mass of any two atoms of the same element is always the same?
The masses of any two atoms of the same element are not always the same. Atomic mass (the mass you see on the periodic table) is just a weighted average of all of the weights of all of the different isotopes of an element.
What element has a mass number of 56 with 36 neutrons?
A mass number is the sum of numbers of protons and neutrons in an atom. Therefore, an element with a mass number of 65 and 36 neutrons contains (65 - 36) or 29 protons and is therefore an atom of copper.
What is the relationship between mass number and atomic numbers?
The mass number is the sum of protons and neutrons in an atom's nucleus, while the atomic number is the number of protons in the nucleus. The atomic number uniquely identifies an element, while the mass number helps determine the atom's mass.
The mass number of an element is the number of?
Mass number is the atomic mass of a particular isotope (apex chem 5.3)
An atom of an element has 54 protons some of the elements atoms have 77 neutrons while other atoms have 79 neutrons what are the atomic numbers and mass numbers of the two types of atoms of this el?
The atomic number for an element with 54 protons is 54. For the atoms with 77 neutrons, the mass number would be 54 (protons) + 77 (neutrons) = 131. For the atoms with 79 neutrons, the mass number would be 54 (protons) + 79 (neutrons) = 133.
Isotopes are atoms of the same element that different numbers of?
Isotopes are atoms of the same element that have different numbers of neutrons in their nuclei. This leads to variations in atomic mass for isotopes of the same element.
What tells you how many atoms of an element there are?
the atomic mass, which is the mass of its protons and neutrons and electrons together
How are atomic number and atomic mass alike?
Atomic number and atomic mass are not alike. Atomic number is the number of protons in the nuclei of the atoms of an element. Each element has a unique atomic number. Atomic mass is the combined masses of the protons, neutrons, and electrons of the atoms of an element. Individual isotopes of an element have specific mass numbers, which are the sum of the protons and neutrons in the nuclei of the atoms of the isotope.
What does it mean when the neutrons of an atom are all different?
The number of neutrons present in atoms of an element may differ. Atoms of an element which have different numbers of neutrons are called isotopes. These differ in mass but have the same chemistry.All of the neutrons in the nucleus of an atom are the same.
When can atoms of the same element vary in the number of?
Atoms of the same element can vary in the number of neutrons they have, resulting in different isotopes of that element. Isotopes have the same number of protons and electrons, but a different number of neutrons, which affects their atomic mass.
Which element has a different number of neutrons?
Isotopes are different atoms of the same element with a different atomic mass. This difference is caused by a different number of neutrons.
Atoms of the same element that have a different number of neutrons and a different atomic mass are what?
isotopes
Neutral atoms of the same element can differ in their number of what?
Neutrons. If the differ in electrons they are not neutral and if they differ in protons then they are no longer the same element as the number of protons determines the name of the element.
How many atoms are there in an element?
The number of atoms in an element depends on the element's atomic mass and the amount of the element present. One mole of an element contains approximately 6.022 x 10^23 atoms, known as Avogadro's number.
What is a Atom of an element that differs in the number of neutrons compared with other atoms in the same element?
An atom of an element that differs in the number of neutrons compared with other atoms in the same element is called an isotope. Isotopes have the same number of protons and electrons but different numbers of neutrons, resulting in variations in atomic mass.
How do you find neutrons in an element?
In order to find the number of neutrons in the atoms of an element, you must specify the isotope that you are interested in. Isotopes are specified according to their mass number. For example carbon-12 is the isotope of carbon that has a mass number of 12, and carbon-14 is the isotope of carbon that has a mass number of 14. All atoms of the same element, regardless of mass number, have the same number of protons, which is the element's atomic number. To determine the number of neutrons in an isotope, you subtract the atomic number from the mass number. For example, the atomic number of carbon is 6, which means that all carbon atoms contain 6 protons in their nuclei. So, to find the number of neutrons in a carbon-12 atom, subtract 6 from 12, and you get 6 neutrons in the atoms of carbon-12. To find the number of neutrons in a carbon-14 atom, subtract 6 from 14, and you get 8 neutrons in the atoms of carbon-14.
