Which of the following statements is not correct?

Group III elements receive electrons.

Potassium is below sodium in Group I of the Periodic Table. Which statement is correct?

Sodium has the same number of valence electrons as that of potassium.

Which of the following statements is true about periodic table?

It contains elements, arranged in order of their increasing proton number.

Which statement about oxygen and sulfur is not correct?

Both are in the same period of the Periodic Table.

Which statement about the trends across a period of the Periodic Table is correct?

Beryllium is more metallic than carbon.

Elements in the same group of a periodic table have ...

Same number of valence electrons

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9.01 Periodic Table

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Answers

1
Which of the following statements is not correct?
Group I elements donate electrons.
Group VII elements can form both ionic and covalent bonds.
Group III elements receive electrons.
Group VIII elements are inert in nature.
2
The number of valence electrons gradually increases down the same group in the periodic table.
False
True
3
In a periodic table, along the period, the number of valence electrons ...
Increases or decreases randomly
Remains constant
Decreases
Increases
4
The metallic property of the elements decreases from left to right in the periodic table.
False
True
5
Elements in the modern periodic table are arranged according to their ...
Increasing atomic number
Increasing atomic mass
Increasing atomic radius
Increasing order of their reactivity
6
Potassium is below sodium in Group I of the Periodic Table. Which statement is correct?
Sodium has more number of electron shells than potassium.
Sodium has the same number of valence electrons as that of potassium.
Sodium is more reactive than Potassium.
Sodium atom has more electrons than a potassium atom
7
Which of the following statements is true about periodic table?
Elements in the same group have different number of valence electrons.
The most reactive elements are at the bottom of every group
Elements in the same period have similar properties.
It contains elements, arranged in order of their increasing proton number.
8
Which statement about oxygen and sulfur is not correct?
Both are in the same group of the Periodic Table
Both have the same number of electrons in their outer shell.
Both are in the same period of the Periodic Table.
Both are non-metals.
9
Which statement about the trends across a period of the Periodic Table is correct?
Beryllium is more metallic than carbon.
Boron is more metallic than lithium.
Magnesium is more metallic than calcium
Aluminium is more metallic than sodium
10
Elements in the same group of a periodic table have ...
Same number of electron shells
Same number of valence electrons
Same colour
Same number of electrons

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