Periodic Trends (H. Chemistry 2024-25)

Front

What is the arrangement of elements in the modern periodic table based on?

Back

Atomic number.

Front

What are the elements in group 2 of the periodic table called?

Back

Alkaline earth metals.

Front

Who is credited with the invention of the Periodic Table?

Back

Dmitri Mendeleev.

Front

What are the elements in groups 3 to 12 of the periodic table known as?

Back

Transition metals.

Front

Which element loses 2 electrons to achieve an octet?

Back

Magnesium.

Front

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

Back

It determines the identity of an element and its position in the periodic table.

Front

What is the general trend in atomic radius across a period in the periodic table?

Back

Atomic radius decreases from left to right across a period.

Front

What is the trend in ionization energy as you move down a group in the periodic table?

Back

Ionization energy generally decreases as you move down a group.

Front

What are the properties of alkali metals?

Back

They are highly reactive, have low melting points, and are found in group 1 of the periodic table.

Front

What is the octet rule?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.