Only electrically neutral atoms.
Only electrically neutral atoms.
Atoms of the same kind. To be more precise, all atoms in an element have the same number of protons (but not necessarily the same number of neutrons - do some reading on "isotopes" for more details).
Atoms are made of protons, neutrons and electrons.
An atom is uncharged or neutral when the number of protons in its nucleus is equal to the number of electrons surrounding the nucleus. This balance of positive and negative charges results in the atom having no overall charge.
They have the same chemical formula and the same properties when in their pure state. Atoms of the same element have the same number of protons. This is the atomic number which is unique to each element and is on the periodic table. The number of protons in the nucleus defines the element. In a neutral atom, the number of electrons are also the same.
The number of protons in the nucleus will ALWAYS be the same for a specific element.(ex: Hydrogen always has EXACTLY 1 proton)But, the number of electons and neutrons can vary in a particular element.
Zinc has 30 protons since its atomic number is 30. This also means that it has 30 electrons to balance the positive charge from the protons. The number of neutrons in an atom of zinc can vary based on the isotope, but a typical zinc atom has around 35 neutrons.
Sodium has 11 positively charged protons. (All atoms have positively charged protons, though they differ in hte number of protons).
Isotopes - atoms with the same atomic number, number of protons and number of electrons
all atoms of the same kind of matter have the same number of protons in them. 🙈
They have the same number of protons in their nuclei.
A proton has a charge of +1. Atoms are not charged because the positively charged protons are balanced by the negatively charged electrons.