Page 17 - ICSE Chemistry 6

new elements and compounds, and their applica ons in developing medicines to help mankind were fi rst
addressed by the alchemists.

Thirst for Knowledge

The Iron Pillar near Qutub Minar in Delhi is 7 metre high and is
notable for the rust-resistant composi on of metals that had been
used in its construc on. The pillar is made up of wrought iron that
has not deteriorated due to rus ng. The corrosion resistance is due to
the presence of an even layer of crystalline iron hydrogen phosphate
that forms high phosphorus content iron which protects the Iron
Pillar from the eff ects of Delhi’s clima c condi ons.

Activity 1.2

Aim: To create a PowerPoint presenta on on Development of Chemistry

Create a PowerPoint presenta on on the topic ‘Development of Chemistry—Historical Perspec ve’. You
can use the Internet for related informa on, images and videos.

NOTABLE CHEMISTS

Chemists were scien st engaged in chemical research or experiments. Let’s study about some famous
scien sts and their contribu ons to chemistry.

Antoine Lavoisier

Antoine-Laurent de Lavoisier (also Antoine Lavoisier) is considered the ‘Father
of Modern Chemistry’. Lavoisier is credited for discovering the role of oxygen in
combus on. He also gave the ‘Law of Conserva on of Mass’ that states that
mass is neither created not destroyed in a chemical reac on. Lavoisier also
named oxygen and hydrogen.

Dmitri Mendeleev

Dmitri Ivanovich Mendeleev was the fi rst scien st who formulated the ‘Modern
Periodic Table of Elements’. Mendeleev used the table to predict the existence
and proper es of new chemical elements.

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