Reactivity

Front

What determines an element's reactivity?

Back

The reactivity of an element is determined by the electrons in its valence shell. If the valence shell has missing electrons, the element is very reactive as it seeks to attract or lose more electrons.

Front

What happens when lithium chloride is mixed with iron?

Back

There is no change; lithium chloride and iron do not react.

Front

What occurs when a less reactive metal is added to a solution containing a more reactive metal compound?

Back

No reaction occurs.

Front

What characteristics do the most reactive metals have?

Back

Most reactive metals have a large atomic radius, low ionization energy, and low electronegativity.

Front

What is the result of the reaction between zinc sulphate and magnesium?

Back

The reaction produces magnesium sulphate and zinc.

Front

Define reactivity in terms of chemical elements.

Back

Reactivity refers to the tendency of a substance to undergo chemical reactions, either by itself or with other materials.

Front

What is the role of valence electrons in chemical reactions?

Back

Valence electrons are involved in forming bonds with other atoms, influencing an element's reactivity.

Front

Explain the concept of ionization energy.

Back

Ionization energy is the energy required to remove an electron from an atom or ion. Lower ionization energy typically indicates higher reactivity.

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons. Lower electronegativity in metals often correlates with higher reactivity.

Front

How does atomic radius affect reactivity in metals?

Back

A larger atomic radius generally means that the outer electrons are further from the nucleus, making them easier to lose and thus increasing reactivity.