Periodic Table Flashcard

Front

What are metalloids?

Back

Metalloids are elements that have properties of both metals and nonmetals. They are found along the staircase line on the periodic table.

Front

How are elements arranged in the modern periodic table?

Back

Elements in the modern periodic table are arranged by atomic number, which is the number of protons in an atom's nucleus.

Front

Which element is located in group 17, period 3 of the periodic table?

Back

Chlorine is the element found in group 17, period 3.

Front

What is the name of the element with the symbol 'Na'?

Back

The element with the symbol 'Na' is sodium.

Front

What does the number 6 represent in the context of an element?

Back

The number 6 represents the atomic number of an element, which indicates the number of protons in its nucleus.

Front

What are the main categories of elements in the periodic table?

Back

The main categories of elements are metals, nonmetals, metalloids, and noble gases.

Front

What is the atomic mass of an element?

Back

The atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is a chemical symbol?

Back

A chemical symbol is a one or two-letter notation used to represent an element on the periodic table.

Front

What are noble gases?

Back

Noble gases are a group of elements in group 18 of the periodic table that are characterized by their lack of reactivity due to having a full valence shell.

Front

What is the significance of valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom and are important for determining how an element will react chemically.