Which statement describes an element? check all that apply.

Question: Which statement describes an element? check all that apply.

Here are the statements that describe an element:

• An element is a pure substance that cannot be broken down into simpler substances by chemical means. This means that an element is made up of only one type of atom. For example, hydrogen is an element because it cannot be broken down into anything simpler than hydrogen atoms.
• An element is made up of atoms that have the same number of protons. The number of protons in an atom is called the atomic number. The atomic number of an element is unique to that element. For example, all hydrogen atoms have 1 proton, all carbon atoms have 6 protons, and all oxygen atoms have 8 protons.
• Elements are listed on the periodic table of elements. The periodic table is a chart that organizes all of the known elements by their atomic number and other properties. The periodic table helps scientists to understand the properties of elements and how they interact with each other.
• The symbol for an element is a one- or two-letter abbreviation of its name. The first letter of the symbol is always capitalized, and the second letter is lowercase if there is one. For example, the symbol for hydrogen is H, the symbol for carbon is C, and the symbol for oxygen is O.

So, the statements that describe an element are:

• An element is a pure substance that cannot be broken down into simpler substances by chemical means.
• An element is made up of atoms that have the same number of protons.
• Elements are listed on the periodic table of elements.
• The symbol for an element is a one- or two-letter abbreviation of its name.