atomic structure

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

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NGSS.MS-PS2-3

Atoms of the same element with a different number of neutrons

• Ion
• Gluons
• Isotope
• Quarks

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NGSS.HS-PS1-8

A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass

• Electron Shells
• Orbitals
• Electron Cloud
• Nucleus

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NGSS.HS-PS1-8

Discovered the electron within the atom

• Thomson
• Chadwick 
• Schrodinger & Heisenberg
• Dalton

The only element with no neutrons in its nucleus.

• Oxygen
• Helium 
• Hydrogen
• Lithium

Tags

NGSS.HS-PS1-8

The number in the upper corner of an element tile (7 for nitrogen) is called _____

• the proton number
• the atomic number
• the electron number
• the mass number

Tags

NGSS.MS-PS1-1

For an atom to be electrically neutral, it must contain the same number of _____

• protons and neutrons
• neutrons and electrons
• protons and electrons
• nucleons and electrons

Tags

NGSS.MS-PS1-1

DIFFERENT kinds of atoms chemically combined to form a substance are

• Mixture
• Element
• Compound
• Substance

Tags

NGSS.MS-PS1-1

What is the atomic number of this atom?

• 1

• 3

• 4

• 7

Tags

NGSS.MS-PS1-1

Which element is represented by the image?

• Boron

• Carbon

• Nitrogen

• Oxygen

Tags

NGSS.MS-PS1-1