Vocabulary 1.5 – Atoms/Molecules

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Presentation transcript:

Vocabulary 1.5 – Atoms/Molecules Chastain 2017 Advanced – 6 Index cards

CCGPS S8P1. Students will examine the scientific view of the nature of matter. a. Distinguish between atoms and molecules.

Atom An atom is a particle of matter that uniquely defines a chemical element. The atom is the basic building block for all matter in the universe. Atoms are extremely small and are made up of a few even smaller particles.

https://www.youtube.com/watch?v=yqLlgIaz1L0

Nucleus The positively charged dense center of an atom.

Electron The electron is a negatively charged particle that spins around the outside of the nucleus. Electrons spin so fast around the nucleus, scientists can never be 100% sure where they are located, so they estimate their location.

Proton The proton is a positively charged particle that is located at the center of the atom in the nucleus.

Neutron Located in the center of the nucleus with the Proton. The neutron doesn't have any charge. The number of neutrons affects the mass and the radioactivity of the atom.

The Nucleus: Crash Course Chemistry #1 https://www.youtube.com/watch?v=FSyAehMdpyI

Periodic Table of Elements The periodic table is an arrangement of the chemical elements. Ordered by their atomic number (number of protons), electron configurations, and recurring chemical properties.

Will the Periodic Table Ever be Complete? https://www.youtube.com/watch?v=w_GZzOJcWR4 https://quizlet.com/_3pj8ip