Atomic Structure

What does the picture represent?

• A chart of chemical elements

• A representation of atomic mass

• A graph of electron orbits

• A neutral atom with equal number of protons and electrons

Tags

NGSS.MS-PS1-1

What does the picture shown represent ?

• Representation of chemical bonds in molecules.

• Diagram of a cell structure.

• Illustration of planetary orbits.

• A positive atom - it has lost an electron

Tags

NGSS.MS-PS1-1

What is an isotope?

• An isotope is an element with different numbers of protons and neutrons.

• An isotope is a type of chemical bond between two elements.

• An isotope is a molecule that contains multiple elements.

• An isotope is a variant of an element with the same number of protons but different numbers of neutrons.

From the periodic table, in the picture shown, what does the number 8 represent ?

• Atomic number of Oxygen

• Mass number of Oxygen

• Atomic number of Carbon

• Atomic mass of Nitrogen

Tags

NGSS.MS-PS1-1

From the periodic table, in the picture show, what does the "O" represent?

• the chemical symbol for Ozone

• Osmium

• the chemical symbol for oxygen

• Oganesson

From the periodic table, in the picture shown, the number at the bottom "15.999" represents what ?

• Atomic mass of Oxygen

• Density of Oxygen

• Atomic number of Oxygen

• Melting point of Oxygen

What are valence electrons and where are they located?

• Valence electrons are located in the inner electron shells.

• Valence electrons are found in the nucleus of an atom.

• Valence electrons are the same as protons in an atom.

• Valence electrons are located in the outermost electron shell of an atom.

How are the number of valence electrons determined on the periodic table?

• Valence electrons are determined by the group number on the periodic table.

• Valence electrons are determined by the period number.

• Valence electrons are determined by the number of protons.

• Valence electrons are determined by the atomic mass.

What are ions?

• Ions are neutral particles with no charge.

• Ions are always positively charged particles.

• Ions are charged atoms or molecules that have lost or gained electrons.

• Ions are only found in solid materials.

Tags

NGSS.MS-PS1-1

What does the picture represent?

• A negative atom- it has gained an electron

• An illustration of cellular respiration.

• A graph showing temperature changes.

• A diagram of a chemical reaction.

Tags

NGSS.MS-PS1-1