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WorksheetsWeek 6: Periodic Table
Total questions: 17
Worksheet time: 13mins
Kehadiran kuliah week 6.
(Sila tulis nama penuh anda menggunakan huruf BESAR)
How are elements on the periodic table arranged by?
in alphabetic order
similar physical & chemical properties
their symbols
Just similar physical properties
What element has the most similar physical and chemical properties to Sulfur (S)?
Carbon (C)
Phosphorous (P)
Oxygen (O)
Neon (Ne
The vertical (up and down) columns in the Periodic Table are called
groups
towers
periods
atomic numbers
________ are found on the Periodic Table.
Compounds
Elements
Mixtures
Ions
As you move from left to right on the periodic table, the number of valence electrons.......
Increases
Decreases
Remains the same
As you move down a group on the periodic table, the number of valence electrons....
Increases
Decreases
Remains the same
When going down the group, the atomic radius increases. Choose the most appropriate reason.
The atoms have more mass.
The atoms have more protons.
The atoms have more energy levels
The atoms have more neutrons
'Moving down group 1, atomic radius increases'. Choose the most appropriate reason for this statement.
more neutrons added
more protons added
number of shell (energy level) increases
atomic mass increases
When across the period from left to right, the atomic radius decreases. This is because
the number of protons increases, so the attraction between nucleus and valence electrons increases
the number of energy levels increases
the number of electrons increases
the atomic mass increases
The atom with the largest atomic radius in Period 4 (row 4) is -
K
Kr
Fe
Co
The Periodic Table of the Elements is useful for revealing patterns and trends in the elements. Which statement accurately describes the variation of atomic radii of the elements?
Atomic radii decreases when across a period from left to right and moving down a group.
Atomic radii increase from left to right across a period and moving a group.
Atomic radii decrease from left to right across a period and increase moving down a group.
Atomic radii increase from left to right across a period and decrease moving down a group.
The symbols W, X, Y, and Z represent four elements shown on the outline of a periodic table.
Which element has the biggest atomic radius?
W
X
Y
Z
