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Periodic table, periods 6 and 7 without symbols (difficult)

In the periodic table of the elements, each row of the table is called the period. The number of levels an atom has determines the period to which it belongs.

The periodic table of the elements is the ...

Periodic table, period 4 and 5 without symbols (difficult)

In the periodic table of the elements, each row of the table is called the period. The number of levels an atom has determines the period to which it belongs. The fourth and fifth periods are eighteen ...

Periodic table by groups without symbols (difficult)

Following a classification according to the bonding and ionization properties of the elements, the elements of the periodic table can be classified as:

Metals

Semimetals

No metals

Noble gases

Th ...

Periodic table, period 4 and 5 without symbols (difficult)

In the periodic table of the elements, each row of the table is called the period. The number of levels an atom has determines the period to which it belongs. The fourth and fifth periods are eighteen ...

Periodic table, alkaline earth group without symbols (difficult)

The alkaline earths take their name from the one who received their oxides, "earths", which have alkaline properties. They are harder than alkali metals, have shine and are good electrical c ...

Periodic table, noble gas group (difficult)

The noble gases are a group of monoatomic, odorless, colorless chemical elements and have a very low chemical reactivity. Pierre Janssen and Joseph Norman Lockyer were the first to discover, in the 19 ...

Periodic table by subgroups with symbols (difficult)

Following a classification according to the bonding and ionization properties of the elements, the elements of the periodic table can be classified as:

Alkalines

Alkaline earth

Transition metals

Other ...

Periodic table, period 1 to 4 without symbols (difficult)

In the periodic table of the elements, each row of the table is called the period. The number of levels an atom has determines the period to which it belongs. The first period has only two elements, t ...

Periodic table, halogen group with symbols (difficult)

Halogens (from the Greek, salt-forming) are very useful elements since, as the name implies, they form salts when they react with metals. Without the halogens we would not have sodium chloride, better ...

Periodic table, periods 1 to 3 with symbols (difficult)

In the periodic table of the elements, each row of the table is called the period. The number of levels an atom has determines the period to which it belongs. The first period has only two elements, w ...

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