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WorksheetsS3.1 Periodic Table
Total questions: 8
Worksheet time: 12mins
Carbon and silicon belong to the same group of the periodic table. Distinguish between the terms group and period in terms of electron arrangement.
Group refers to the vertical columns in the periodic table, while period refers to the horizontal rows.
Group refers to the horizontal rows in the periodic table, while period refers to the vertical columns.
Group and period have the same meaning in terms of electron arrangement.
Group and period have no relation to electron arrangement.
Carbon and silicon belong to the same group of the periodic table. State the period numbers of both carbon and silicon.
Carbon belongs to period 2 and silicon belongs to period 3.
Carbon belongs to period 3 and silicon belongs to period 4.
Carbon belongs to period 4 and silicon belongs to period 5.
Carbon belongs to period 5 and silicon belongs to period 6.
An atom of an element contains 19 electrons. In which group of the periodic table does it occur?
Group 1
Group 2
Group 5
Group 7
An element is in group 14 and period 3 of the periodic table. How many electrons are in the highest occupied energy level of an atom of this element?
3
4
12
14
Which statements about atomic structure and the periodic table are correct?
I. An element in group 2 has 2 electrons in its valence (outer) energy level.
II. An element in period 3 has electrons in 3 energy levels.
III. The element in group 2 and period 3 has an atomic number of 12.
I and II only
I and III only
II and III only
I, II and III
What is the correct electron configuration of the Cu+ ion?
[Ar]3d⁹4s¹
[Ar]3d74s²
[Ar]3d10
[Ar]3d84s¹
Which species has the electron configuration of 1s²2s²2p63s²3p63d8
Ni
Ni²+
Fe
Cu²+
Element X is in group 15 and period 4 of the periodic table. Which statement is correct?
X has 5 occupied energy levels.
X can form ions with 3- charge.
X is a transition element.
X has 4 valence electrons.
