Question

The Lanthanides are often be found below the Periodic Table so it will fit nicely on a textbook page. If they were inserted into the Periodic Table, where would they go?

group 7
group 6
period 7
period 6

Answer 1

period 6

Step-by-step explanation:

If the lanthanides were inserted into the periodic table, they would go into periodic 6.

Their atomic number is between 57 - 71 from element lanthanum to lutetium.

• The elements in this period are 15 in number.
• They are also know as elements in the f-block.

The elements that makes up the series are:

Lanthanum

Cerium

Praseodymium

Neodymium

Promethium

Samarium

Europium

Gadolinium

Terbium

Dysprosium

Holmium

Erbium

Thulium

Ytterbium

Lutetium