Group 7 Halogens and chemical bonds

Flashcards covering the key concepts related to chemical bonding and the properties of elements discussed in the lecture.

What type of bond is formed when alkali metals transfer electrons to halogens?

Ionic bond.

What type of bond is formed between two halogen atoms?

Covalent bond.

Which group of elements are gases at room temperature in the context of the lecture notes?

Group 7 elements (halogens).

At what temperature is considered room temperature for this context?

20 degrees Celsius.

If a substance has a melting point higher than 20 degrees Celsius, what state of matter is it at room temperature?

Solid.

What do we infer if a substance has a boiling point lower than 20 degrees Celsius?

It is a gas at room temperature.

Which element was mentioned to have a melting point higher than 20 degrees Celsius?

Iodine.

What does relative molecular mass indicate about a molecule?

The size of the molecule.

As the relative molecular mass increases, what happens to the size of the atoms?

The atoms get bigger.