is there always the same number of neutrons as protons in an atom?
313165
The number of protons in the nucleus of every atom of an element is always the same, but this is not the case with the number of neutrons. Atoms of the same element can have a different number of neutrons. Atoms want to have the same number of neutrons and protons but the number of neutrons can change.
948592
Isotopes of the same element must differ in the number of neutrons, not protons. If the isotopes differed in the number of protons, they would be completely different elements.
960952
Explanation: Isotopes of an element are atoms of the same element with same number of protons but different number of neutrons.
231127
Fundamental Subatomic Particles The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
982945
There's more to the atom than the electrons. ... The nucleus of an atom contains neutrons and protons bonded tightly together. The same chemical element can have a different number of neutrons and still be the same element. We refer to the atoms of the same element with different numbers of neutrons as "isotopes".
1264987
The atoms of different elements differ in the number of protons that are found in their nuclei. The number of protons in an atom's nucleus is called the atomic number. ... The number of protons in an atom's nucleus is called the atomic number. All atoms of the same element have the same atomic number.
1152693
A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. ... All isotopes of a particular element have the same number of protons, but can have different numbers of neutrons.
392643
Identical Protons, Different Elements All protons are identical. ... In fact, atoms of any given element have a unique number of protons that is different from the numbers of protons of all other elements. For example, a hydrogen atom has just one proton, whereas a helium atom has two protons.
1082271
Protons and neutrons make up the nucleus of an atom. All protons are identical to each other, and all neutrons are identical to each other.
781725
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.
155908
The number of protons in an atom is called its atomic number (Z). This number is very important because it is unique for atoms of a given element. All atoms of an element have the same number of protons, and every element has a different number of protons in its atoms.
349483
Atoms of the same element that differ in their numbers of neutrons are called isotopes. ... Usually one or two isotopes of an element are the most stable and common. Different isotopes of an element generally have the same physical and chemical properties. That's because they have the same numbers of protons and electrons.
1027236
Atoms of the same element with different numbers of neutrons are called isotopes .
1269040
Atoms of the same element that differ in their numbers of neutrons are called isotopes.
500251
The atomic number of an element is the number of protons in its nucleus. Neutrons are neutral particles having a mass slightly greater than that of the proton. Different isotopes of the same element contain the same number of protons but differing numbers of neutrons.
241342
The total number of protons and neutrons in an atom is called its mass number. The proton number is shown below the chemical symbol, and the mass number is shown above. In this example the atomic number is 17 and the mass number is 35.
1390798
Isotopes are atoms of the same element that contain an identical number of protons, but a different number of neutrons. Despite having different numbers of neutrons, isotopes of the same element have very similar physical properties.