Grade Repair Compounds Test

Front

What is the starting point for electron configuration?

Back

1s²

Front

Which element is classified as a noble gas?

Back

Argon

Front

What atom corresponds to the electron configuration 1s² 2s² 2p⁶ 3s²?

Back

Magnesium

Front

What is the correct statement about the electron structure of Nitrogen?

Back

The structure is incorrect because Nitrogen needs 10 valence electrons and the image has 8 valence electrons.

Front

What is the chemical formula for the ionic compound formed by lithium and oxygen?

Back

Li₂O.

Front

Define electron configuration.

Back

The distribution of electrons in an atom's orbitals.

Front

What is the octet rule?

Back

Atoms tend to gain, lose, or share electrons to have eight electrons in their valence shell.

Front

What is a noble gas?

Back

An element in group 18 of the periodic table, known for being chemically inert.

Front

What is the significance of valence electrons?

Back

Valence electrons determine an atom's chemical properties and its ability to bond with other atoms.

Front

What is an ionic bond?

Back

A chemical bond formed between two ions with opposite charges.