Atoms, Elements and Bonds Flashcard

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond where electrons are shared between atoms to fill their outer electron shells.

Front

How many different elements are present in the compound H2COCH2?

Back

There are 3 different elements present in H2COCH2: Hydrogen (H), Carbon (C), and Oxygen (O).

Front

How are ionic bonds formed?

Back

Ionic bonds are formed through the transfer of electrons from one atom to another, resulting in the formation of charged ions.

Front

What is a compound?

Back

A compound is a substance made up of atoms of two or more different elements that are chemically bonded together in definite proportions.

Front

What happens to an atom when it gains a negative electron?

Back

When an atom gains a negative electron, it becomes negatively charged.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements chemically bonded together.

Front

What are the three main types of chemical bonds?

Back

The three main types of chemical bonds are covalent bonds, ionic bonds, and metallic bonds.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to form bonds in such a way that they have eight electrons in their outermost shell, achieving a stable electron configuration.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the role of valence electrons in bonding?

Back

Valence electrons are the outermost electrons of an atom and are involved in forming chemical bonds with other atoms.