ELEMENTS, COMPOUNDS, ACIDS AND BASES

Which of the following is the difference of elements to compounds?

• Elements are combinations of two or more elements.

• Element is made from the same type of atoms.

• Element is not able to be broken down into parts.

• Compounds are pure substance, elements are not

Pure substances are classified into elements and compounds. Elements are the simplified form of matter. Which of the following is an element?

• Carbon monoxide

• Glucose

• Nitrous oxide

• Germanium

Which of the following statements describes a compound?

• It consists of atoms of two or more different elements bond together.

• It can be separated by physical means.

• It contains only one kind of atom.

• It cannot be decomposed into simpler types of substances.

What is the difference between a compound and an element?

• Compounds are made up of elements and can be chemically separated. Elements cannot be separated.

• Elements make up compounds. Elements can be separated but compounds cannot be separated.

• Elements are found on the periodic table and compounds are found on the dining room table.

• Compounds are made up of elements and cannot be chemically separated. Elements can be separated.

How did Mendeleev arrange the elements?

• alphabetical 

• density

• melting point

• atomic mass

A rule that states that repeating chemical and physical properties of elements change periodically with the atomic number of the elements is the _________.

• periodic law

• alkaline-earth metals

• actinide

• group rule

What does the 6 represent?

• atomic mass

• atomic number

• element name

• chemical symbol 

What is the proper way to write Element Symbol?

• The first letter is capitalized and the second letter is not.

• The first letter is capitalized and the second letter is also capitalized.

• The first letter is capitalized and the second letter is not.

• The first letter is not capitalized and the second letter is capitalized.

Elements on the periodic table can be grouped into families (or groups) based on their chemical properties?

• True

• False

A substance that changes color when mixed with an acid or base is a(n) ___.

• Indicator

• Neutralizer

• Stabilizer

• Moderator