Table of Contents
- 1 How different atoms of the same element could have different atomic mass?
- 2 What are the masses of atoms from the same element?
- 3 Why do atoms have different masses?
- 4 Why do elements have different masses?
- 5 How are atoms of the same element the same?
- 6 Is the mass of an atom equal to its mass?
- 7 Who said atoms of different elements have different masses?
How different atoms of the same element could have different atomic mass?
Isotopes of any given element all contain the same number of protons, so they have the same atomic number (for example, the atomic number of helium is always 2). Isotopes of a given element contain different numbers of neutrons, therefore, different isotopes have different mass numbers.
What are the masses of atoms from the same element?
Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.
Do elements have different masses?
All atoms of a chemical element have the same atomic number (number of protons in the nucleus) but may have different mass numbers (from having different numbers of neutrons in the nucleus). Atoms of an element with the same mass number make up an isotope of the element.
Why do atoms have different masses?
This number of protons is called the atomic number. The mass of the atom, its atomic mass, depends upon both the number of protons and upon the number of neutrons present in the nucleus (remember that the mass of an electron is so small that it is simply ignored for the purpose of establishing the atomic mass).
Why do elements have different masses?
Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number, but a different number of neutrons giving each elemental isotope a different atomic weight.
Can 2 elements have the same atomic mass?
Different isotopes of the same element cannot have the same mass number, but isotopes of different elements often do have the same mass number, e.g., carbon-14 (6 protons and 8 neutrons) and nitrogen-14 (7 protons and 7 neutrons).
How are atoms of the same element the same?
All atoms if the same element have the same number if protons, but the number of neutrons can vary. Atoms with the same number of protons but a different number of neutrons are called isotopes.
Is the mass of an atom equal to its mass?
Yes. The nucleus of an atom consists of protons and neutrons. The mass of the protons plus the mass of the neutrons equals the mass of the atom (I simplified it a little bit, it’s not exactly the sum because of the so-called mass defect, but let’s keep it simple).
Can an isotope of an element have the same atomic number?
Isotopes have the same atomic number but different mass number. Isotopes have very similar chemical properties but sometimes differ greatly in nuclear stability.” For example, carbon-12, carbon-13, and carbon-14 are three isotopes of the element carbon with mass numbers 12, 13, and 14, respectively.
Who said atoms of different elements have different masses?
Who said atoms of different elements have different masses? Question Answer Said atoms are small, hard particles. Democritus Atoms are made of single material formed Democritus Atoms of different elements are differen Dalton Atoms of the same element are exactly al Dalton