Exploring Atomic Structure and the Periodic Table

The video tutorial covers the concept of systems, explaining how everything is composed of smaller parts. It delves into the structure of atoms, discussing subatomic particles like protons, neutrons, and electrons. The tutorial explains atomic identity, isotopes, and the periodic table, highlighting how elements are organized based on atomic numbers and masses. The video aims to provide a foundational understanding of atomic theory and the periodic table's role in chemistry.

What is an example of a system in science?

• A single electron

• A single proton

• A candy bar

• A single atom

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NGSS.MS-LS1-3

NGSS.MS-LS2-3

What are the smaller units that make up atoms?

• Subatomic particles

• Molecules

• Cells

• Compounds

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Which subatomic particle has no charge?

• Proton

• Electron

• Neutron

• Nucleus

What determines the identity of an atom?

• Number of neutrons

• Number of electrons

• Number of protons

• Number of molecules

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NGSS.MS-PS1-1

What do we call atoms of the same element with different numbers of neutrons?

• Ions

• Isotopes

• Molecules

• Compounds

What is the periodic table organized by?

• Number of molecules

• Number of neutrons

• Atomic mass

• Atomic number

What is the atomic number of lithium?

• 3

• 7

• 11

• 5

How do you determine the number of neutrons in an atom?

• Add the atomic number and atomic mass

• Subtract the atomic number from the atomic mass

• Multiply the atomic number by the atomic mass

• Divide the atomic mass by the atomic number

What is the symbol for potassium on the periodic table?

• P

• K

• Pt

• Po

Which of the following is NOT an element?

• Oxygen

• Carbon

• Water

• Hydrogen

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NGSS.MS-PS1-1