SMS 2nd 4.5 Test Review 2 (2024-2025)

Front

What is the periodic table of elements?

Back

A tabular arrangement of chemical elements, organized by increasing atomic number, where elements with similar properties are grouped together.

Front

What is a group in the periodic table?

Back

A vertical column in the periodic table that contains elements with similar chemical properties.

Front

What is a covalent bond?

Back

A type of chemical bond where two nonmetal atoms share electrons.

Front

What is the difference between a metal and a nonmetal?

Back

Metals are typically good conductors of heat and electricity, malleable, and ductile, while nonmetals are poor conductors and are often brittle.

Front

What is potential energy?

Back

The energy stored in an object due to its position or configuration, such as an object at height.

Front

What is kinetic energy?

Back

The energy of an object due to its motion.

Front

How do you count atoms in a chemical formula?

Back

Count the number of each type of atom represented in the formula, using subscripts to indicate the quantity.

Front

What is the significance of the atomic number?

Back

The atomic number indicates the number of protons in an atom and determines the element's identity.

Front

What is a chemical reaction?

Back

A process where reactants are transformed into products, involving the breaking and forming of chemical bonds.

Front

What is an acid?

Back

A substance that donates protons (H+) in a solution and typically has a sour taste.