Atomic Structure & Periodic Table Review

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What are the main groups of the periodic table?

Back

The main groups include alkali metals, alkaline earth metals, transition metals, halogens, and noble gases.

Front

What are noble gases?

Back

Noble gases are a group of inert gases in Group 18 of the periodic table, known for their lack of reactivity due to having a full valence shell.

Front

What is a metalloid?

Back

Metalloids are elements that have properties of both metals and nonmetals, typically found along the zig-zag line on the periodic table.

Front

Identify the element with 47 protons.

Back

Ag- Silver.

Front

Which element is a nonmetal in period 4 that is more reactive than selenium?

Back

Br- Bromine.

Front

What is the symbol for Oxygen?

Back

O.

Front

What is the significance of valence electrons?

Back

Valence electrons determine how an element reacts chemically with other elements.

Front

Identify the metalloid in period 4 with four valence electrons.

Back

Ge- Germanium.

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.