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quizlet.com/12285478/chapter-12-science-flash-cards

Why are some atoms of the same element heavier than others? Different numbers of neutrons in their nuclei. What are atoms that have the same number of protons but different numbers of neutrons called? isotopes. How many isotopes does hydrogen have? 3.

quizlet.com/153810304/isotopes-chem-quiz-flash-cards

Start studying Isotopes Chem quiz. Learn vocabulary, terms, and more with flashcards, games, and other study tools. ... are atoms that have the same number of protons but different number of neutrons. Isotopes of the same element have the same atomic number but.

chem.libretexts.org/Bookshelves/Introductory_Chemistry/Map:_Introductory...

Atoms of the same element, containing the same number of protons, but different numbers of neutrons, are known as isotopes. 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).

www.reference.com/science/atoms-same-element-common-8b05c6b5d6622982

All atoms of the same element have the same number of protons in the nucleus and consequently have the same atomic number. All atoms of the same neutral element have the same number of electrons as well. Atoms of an element usually have the same number of neutrons as protons. Atoms of the same element that have a different number of neutrons ...

simple.wikipedia.org/wiki/Isotope

The atoms of a chemical element can exist in different types. These are called isotopes.They have the same number of protons (and electrons), but different numbers of neutrons.Different isotopes of the same element have different masses. Mass is the word for how much substance (or matter) something has.Things with different masses have different weights.

www.quora.com/Do-atoms-have-the-same-number-of-electrons-and-neutrons

A neutrally charge atom will have equal numbers of protons and electrons. If the atom is an ion it will have gained or lost an electron so the number will not be equal. The number of electrons is pretty much unrelated the number of neutrons. Light...

www.answers.com/Q/What_are_atoms_of_the_same_element_with_different_numbers_of...

Isotopes of an element are atoms with the same number of protons, but different mass numbers. Because mass number is the sum of protons and neutrons, this means that they have different numbers of ...

www.answers.com/Q/Are_atoms_of_the_same_elements_with_different_number_of_neutrons

Atoms of different elements can have the same mass. An isotope of nitrogen with 7 protons and 9 neutrons, for example, will have the same mass as an isotope of oxygen with 8 protons and 8 neutrons.

physicsnet.co.uk/gcse-physics/atomic-structure

Atoms of the same element always have the same number of protons ( is it had a different number of protons it would be a different element). However atoms of the same element can have different numbers of neutrons (this gives them a different mass number). Different versions of the same element are called isotopes.

www.dummies.com/education/science/chemistry/isotopes-different-types-of-atoms

Atoms in a chemical element that have different numbers of neutrons than protons and electrons are called isotopes. The atoms in a particular element have an identical number of protons and electrons but can have varying numbers of neutrons. Hydrogen is a common element on earth. Hydrogen’s atomic ...