Grade Recovery - Semester 1

Front

What is the correct chronological order of atomic models?

Back

Plum pudding, Nuclear, Planetary, Quantum Mechanic/Electron Cloud

Front

What type of elements are metalloids?

Back

Elements that have properties of both metals and nonmetals, typically found along the zig-zag line on the periodic table.

Front

What is flammability?

Back

Flammability is the ability of a substance to catch fire and burn easily.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases), where warmer, less dense areas rise and cooler, denser areas sink.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is the Plum Pudding Model?

Back

An early atomic model proposed by J.J. Thomson, suggesting that atoms are composed of a positively charged 'soup' with negatively charged electrons embedded within.

Front

What is the Nuclear Model of the atom?

Back

An atomic model proposed by Ernest Rutherford, which describes the atom as having a dense, positively charged nucleus surrounded by electrons.

Front

What is the Planetary Model of the atom?

Back

An atomic model proposed by Niels Bohr, depicting electrons orbiting the nucleus in fixed paths, similar to planets orbiting the sun.

Front

What is the Quantum Mechanical Model?

Back

The most current atomic model that describes electrons as existing in probability clouds rather than fixed orbits.

Front

What are alkali metals?

Back

Alkali metals are highly reactive elements found in Group 1 of the periodic table, including lithium, sodium, and potassium.