Periodic Table Trends 2

Front

What type of elements touch the zigzag line?

Back

Metalloids are elements that touch the zigzag line on the periodic table, exhibiting properties of both metals and nonmetals.

Front

How many PROTONS does Silicon have?

Back

Silicon has 14 protons, which is also its atomic number.

Front

What does the atomic number of an atom represent?

Back

The atomic number represents the number of protons in the atom.

Front

How do I know the Cl is a capital 'C' and lowercase 'L' and not an uppercase 'i'?

Back

The second letter in the chemical symbol for elements is always lowercase.

Front

What is the name of Group 18 in the periodic table?

Back

Group 18 is known as the Noble Gases.

Front

What are the properties of metals?

Back

Metals are typically shiny, good conductors of heat and electricity, malleable, and ductile.

Front

What are the properties of nonmetals?

Back

Nonmetals are usually dull, poor conductors of heat and electricity, and can be gases, liquids, or brittle solids.

Front

What are metalloids?

Back

Metalloids have properties that are intermediate between metals and nonmetals, and they are found along the zigzag line.

Front

What is the significance of the atomic mass?

Back

The atomic mass is the weighted average mass of an element's isotopes, reflecting the number of protons and neutrons.

Front

What is the difference between an element and a compound?

Back

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