Electron configuration

s, p, d, f

p, s, d, f

d, p, s, f

f, d, p, s

Electrons fill higher energy orbitals first

Electrons fill lower energy orbitals first

Electrons can occupy any orbital

Electrons must be paired in orbitals

Both arrows in the 2p box should be pointing up

Nothing

One of the electrons in the first 2p box should be placed in the second 2p box, still pointing down

One of the electrons in the first 2p box should be placed in the second 2p box, pointing up

Hund's Rule

Pauli Exclusion Principle

Aufbau Principle

Octet Rule

All electrons should occupy the same orbital first

Single electrons must occupy the orbitals within the same energy level first

Electrons can pair up in any orbital

Electrons should be distributed randomly

1s² 2s² 2p¹

1s² 2s² 2p²

1s² 2s¹ 2p²

1s² 2s² 2p⁰

It shows the atomic mass of elements.

It indicates the number of protons in an atom.

It serves as a guide for electron configurations.

It lists all known elements in alphabetical order.

Yes

No, missing electrons

No, too many electrons

No, dots are in wrong place.

It refers to substances that easily lose electrons.

It refers to substances that do not react with other substances.

It refers to substances that have strong electrochemical charges.

It refers to gases.

Write the symbol of the preceding noble gas.

Subtract the number of electrons of the noble gas from that of the element assigned.

Use the row number to get the energy level.

All of the above.

Because they are all gases

There outermost electron shell is full

They all have 3 valence electrons

They have an even number of protons