Overview of Atomic Structure | Introduction to Chemistry

Neutrons

Neutrons

________ are uncharged particles found within the nucleus.

Proton

________- Positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element.

electron

Each ________ has a negative charge- (1) equal to the positive charge of a proton (+1)

× 10 24 grams

Protons and neutrons have approximately the same mass, about 1.67 ________, which scientists define as one atomic mass unit (amu) or one Dalton.

Interactive

________: Build an Atom: Build an atom out of protons, neutrons, and electrons, and see how the element, charge, and mass change.

Neutron

________- A subatomic particle forming part of the nucleus of an atom.

Protons

________ and neutrons have approximately the same mass, about 1.67 × 10- 24 grams.

Atoms

________ combine to form molecules, which then interact to form solids, gases, or liquids.

Electrons

________ contribute greatly to the atoms charge, as each electron has a negative charge equal to the positive charge of a proton.

smallest possible amount of matter

Atom- The ________ which still retains its identity as a chemical element, consisting of a nucleus surrounded by electrons.

Electron Properties

Exploring ________: Compare the behavior of electrons to that of other charged particles to discover properties of electrons such as charge and mass.

neutral atom

In an uncharged, ________, the number of electrons orbiting the nucleus is equal to the number of protons inside the nucleus.

smallest unit of matter

An atom is the ________ that retains all of the chemical properties of an element.

neutrons

Atoms consist of three basic particles: protons, electrons, and ________.

Atoms

________ are made up of protons and neutrons located within the nucleus, with electrons in orbitals surrounding the nucleus.