Graduation of Elements inthe Modern Periodic Table

Groups and periods

properties

Atomic size The electronegativity

The metallic and

nonmetallic

1 -Atomic size property:

2 -The electronegativity property:It is the ability of the atom to attract the electrons ofthe chemical bond towards itself.

3 -The metallic and nonmetallic property:elements

Metals Nonmetals Semimetals Inert gases

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Patterns: metals and non-metals

on the right (except hydrogen)

Where are these different types of elements grouped together in the periodic table?

metals

non-metals

between metals and non-metalsmetalloids

on the left and centre

Can you name a metalloid element?

Metalloids aren’t a type of rock music fan!

Metalloids have some properties similar to metals and other properties similar to non-metals.

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Metals, non-metals and metalloids

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Patterns: reactivity of metals

Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg

Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po

Rb Sr Y Zr NbMo Tc Ru Rh Pd Ag Cd In Sn

K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga

Na Mg Al

Li Be

What happens to the reactivity of metals down a group?

Which is the most reactive metal?

decrease in reactivity

incr

ease

in

rea

ctiv

ity

What happens to the reactivity of metals along a period?

decrease in reactivity

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Which metal is more reactive?

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Patterns: reactivity of non-metals

increase in reactivity

Group 0 elements are the most unreactive of all elements.

For the remaining non-metals and metalloids, reactivity increases up a group and along a period from left to right.

Which is the most reactive non-metal/metalloid?

decrease in

reactivity

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Which non-metal is more reactive?

Patterns 1. Metals and Non-metals

Atomic size and metalic property decrease

The electronegativity and non m

etallic property decreaseThe electronegativity and non

metallic property decrease

Atomic size and m

etalic property increase

The electronegativity and non metallic property increase