# How can atoms of the same element be different from one another?

## How can atoms of the same element be different from one another?

Two atoms of the same chemical element are typically not identical. Two atoms of the same element can be different if their electrons are in different states. If one copper atom has an electron in an excited state and another copper atom has all of its electrons in the ground state, then the two atoms are different.

## When you have the same element but a different mass you have?

Isotopes of the same element will have the same atomic number but different mass numbers. Atomic number, chemical symbol, and mass numberCarbon has an atomic number of six, and two stable isotopes with mass numbers of twelve and thirteen, respectively. Its average atomic mass is 12.11.

Can an element have two atoms?

Other elements contain two or more atoms in their molecular form (Fig. 2.8). Hydrogen (H2), oxygen (O2), and chlorine (Cl2) molecules, for example, each contains two atoms.

What is 2 atoms of the same element called?

An isotope is one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table and nearly identical chemical behavior but with different atomic masses and physical properties. Every chemical element has one or more isotopes.

### What is two atoms of the same element?

Diatomic molecules are molecules composed of only two atoms, of the same or different chemical elements. The prefix di- is of Greek origin, meaning “two”. If a diatomic molecule consists of two atoms of the same element, such as hydrogen (H2) or oxygen (O2), then it is said to be homonuclear.

### Do all atoms of the same element have the same atomic number?

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.

Are all atoms the same?

But, all atoms are not the same. You know that the number of protons in an atom determines what element you have. For instance hydrogen has one proton, carbon has six. The difference in the number of protons and neutrons in atoms account for many of the different properties of elements.

What is produced when two atoms combined?

A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound.

## Why do different atoms of the same element have the same atomic number?

The atomic number is the same as the number of protons. The atomic mass is the sum of the number of protons and neutrons. For ions (which may either have a positive or negative charge), only the number of electrons are being changed. If the ion is negative it means that an electron has been added to the configuration.

## Why do all atoms of the same element have the same atomic number?

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.

What do atoms of the same element have in common?

All atoms of the same element have the same number of protons, but some may have different numbers of neutrons. Atoms of the same element that differ in their numbers of neutrons are called isotopes. Many isotopes occur naturally. Usually one or two isotopes of an element are the most stable and common.

When you have 2 different atoms combined it will be produced?

If a molecule forms from atoms of two or more different elements, we call it a compound. A common compound everyone is familiar with results from the chemical bonding of two atoms of hydrogen with one atom of oxygen to form a molecule of water (H2O). Atoms can chemically bond in many ways.

### Why do two atoms of the same element have different masses?

Two atoms of the same element will have different masses if they are? Two atoms of the same element will have different masses if they are different isotopes. This means they would have differing numbers of neutrons, but the same number of protons (as this defines the atomic identity).

### Can two atoms of the same element have different numbers of neutrons?

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”.

What is it called when two atoms have the same atomic number?

If two atoms have the same atomic number but different mass numbers, what are they called? They are called isotopes. The identity of a chemical element is given by the number of protons its atoms have in their nuclei. More specifically, atoms that have the same number of protons in their nucleus belong to the same chemical element.

Do isotopes of the same 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.