HIstory of the Periodic Table HW

Front

What are the vertical columns in the periodic table called?

Back

Groups

Front

Which scientist organized the periodic table by atomic number?

Back

Moseley

Front

How are elements arranged in the modern periodic table?

Back

By atomic number

Front

Who discovered many elements past uranium and reorganized the periodic table?

Back

Seaborg

Front

What determines an element's identity?

Back

The number of protons

Front

What are the horizontal rows in the periodic table called?

Back

Periods

Front

What is the significance of atomic number in the periodic table?

Back

It defines the element and its position in the table.

Front

Who is known for the first periodic table based on atomic mass?

Back

Mendeleev

Front

What are lanthanides and actinides?

Back

They are two series of elements placed below the main body of the periodic table.

Front

What is the role of valence electrons in chemical bonding?

Back

They determine how an element will bond with others.