Atomic Structure and the Periodic Table

Flashcards covering key concepts of atomic structure and the periodic table from the lecture notes.

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

Alkali metals, Noble gases, Halogens, Transition metals.

Where are metals and non-metals located in the periodic table?

Metals are located to the left of the periodic table, while non-metals are on the right.

What charge do alkali metals typically form?

Alkali metals generally form +1 ions.

What is the trend of reactivity in alkali metals down the group?

Reactivity increases down the group.

What was Mendeleev known for in the development of the periodic table?

Mendeleev arranged elements by atomic weight and left gaps for undiscovered elements.

What is the electronic structure of sodium?

The electronic structure of sodium is 2, 8, 1.

How many electrons can the first, second, and third shells hold?

1st shell: 2 electrons; 2nd shell: 8 electrons; 3rd shell: 8 electrons.

What makes an atom more likely to react?

An atom with an outer shell that is not full is more likely to react to fill it.

What is the electronic structure of nitrogen?

The electronic structure of nitrogen is 2, 5.

What is the electronic structure of magnesium?

The electronic structure of magnesium is 2, 8, 2.