benchmark 2 practice

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Front

What are the properties of elements in Group 1 of the periodic table?

Back

Elements in Group 1 are highly reactive metals, have one electron in their outer shell, and are typically soft and shiny.

Front

What is the significance of the atomic number?

Back

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

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What does it mean for an element to be reactive?

Back

A reactive element readily forms chemical bonds with other elements, often resulting in chemical reactions.

Front

What are the three main subatomic particles?

Back

The three main subatomic particles are protons (positive charge), neutrons (neutral charge), and electrons (negative charge).

Front

What is the role of electrons in chemical bonding?

Back

Electrons, particularly those in the outer shell, are involved in forming bonds between atoms, either by sharing (covalent bonds) or transferring (ionic bonds).

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another, often involving the formation of new substances.

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of elements organized by increasing atomic number, showing periodic trends in properties.

Front

What is an atomic model?

Back

An atomic model is a theoretical representation of the structure of an atom, illustrating the arrangement of subatomic particles.