Flashcards: Fundamentals of Atomic Structure — 18 cartões

Atom structure — main components?

Protons, neutrons, electrons.

Protons — location?

In the nucleus.

Neutrons — charge?

Neutral (no charge).

Electrons — orbit?

In shells around nucleus.

Electron shells — pattern?

2,8,8... electrons.

Periodic table — layout?

Rows (periods) and columns (groups).

Group properties — shared?

Same outer electrons, similar reactivity.

Period properties — determined by?

Number of electron shells.

Metals — location?

Left and middle of table.

Non-metals — location?

Right side of table.

Nuclear mass — main contributors?

Protons and neutrons.

Mass number — equals?

Protons plus neutrons.

Neutrons — calculation?

Mass number minus atomic number.

Particle charges — protons?

Positive (+).

Particle charges — electrons?

Negative (-).

Particle charges — neutrons?

Neutral (0).

Atomic number — defines?

Element identity.

Outer electrons — influence?

Chemical properties and group.