Bonding Dot Diagram Practice

Front

What is a Lewis Dot Diagram?

Back

A Lewis Dot Diagram is a representation of the valence electrons in an atom, showing how they are arranged in bonds between atoms.

Front

How many valence electrons does water (H₂O) have?

Back

Water has a total of 8 valence electrons: 2 from hydrogen (1 each) and 6 from oxygen.

Front

What is the significance of the octet rule in bonding?

Back

The octet rule states that atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving a stable electron configuration.

Front

Which element is the most stable due to a filled valence shell?

Back

Neon is the most stable element because its highest occupied energy level is filled.

Front

What is the correct Lewis structure for PBr₃?

Back

The correct Lewis structure for PBr₃ shows phosphorus in the center with three bromine atoms bonded to it, and one lone pair on phosphorus.

Front

How do you determine the most stable element among lithium, carbon, fluorine, and neon?

Back

The most stable element is determined by the completeness of its valence shell; neon is the most stable because it has a full outer shell.

Front

What is the electron-dot formula for CO₂?

Back

The correct electron-dot formula for CO₂ shows a double bond between carbon and each oxygen atom.

Front

What does it mean for an atom to be stable?

Back

An atom is stable when its outermost electron shell is filled, minimizing its tendency to react with other atoms.

Front

How many bonds can carbon form?

Back

Carbon can form four covalent bonds due to its four valence electrons.

Front

What is the role of valence electrons in chemical bonding?

Back

Valence electrons are involved in forming bonds between atoms, determining the chemical properties and reactivity of the element.