Reading the periodic table

What is the periodic table?

A chart organizing all known elements by atomic number and properties.

What does atomic number represent?

The number of protons in an atom's nucleus, determining the element.

Elements in the same group share what?

Similar chemical properties and the same number of valence electrons.

True or false: Noble gases are reactive.

False, because noble gases have a full valence shell and are inert.

Difference between metals and nonmetals?

Metals are conductive and malleable, nonmetals are insulators and brittle.

What are periods in the periodic table?

Horizontal rows that indicate the number of electron shells in the elements.

Fill in the blank: The symbol for gold is _____

Au, derived from the Latin name 'Aurum'.

What are alkali metals?

Highly reactive metals found in Group 1 of the periodic table.

Which element has the atomic number 6?

Carbon, an essential element for life.

What is electronegativity?

A measure of an atom's ability to attract electrons in a bond.

True or false: Transition metals are found in the p-block.

False, because transition metals are located in the d-block.

What do halogens typically form?

Salts with metals and are found in Group 17.

What is a metalloid?

Elements with properties of both metals and nonmetals, like silicon.

Where are lanthanides located?

In the f-block, below the main body of the periodic table.

What is the significance of atomic mass?

It indicates the mass of an atom, accounting for protons and neutrons.