Unit 1 AOS 1 - Periodic table (1)

What is the subshell notation for Aluminium?

• 1s²2s²2p⁶3s²3p¹

• 1s²2s²2p⁶3s¹3p²

• 1s²2s²2p⁸3¹

• 1s²2s²2p⁶3s³

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What is the electron configuration of Calcium?

• 8, 8, 2, 2

• 2, 8, 8, 2

• 2, 8, 2, 8

• 8, 2, 8, 2

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What is this diagram representing?

• Electron configurations

• Subshell notation

• A representation of the order subshells fill in an electron.

• A representation of how many electrons fill each subshell in an electron.

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What is the difference between an atom and an ion?

• Ions have more electrons than protons

• Ions have more protons than electrons

• Atoms have equal number of electrons and protons, ions do not

• Atoms are stable ions are unstable

When elements have the same number of valence electrons?

• They are in the same group of the periodic table

• The are in the same period of the periodic table

• They are in the same column of the periodic table

• They are in the same row of the periodic table

When element have the same number of shells...

• They are in the same group of the periodic table

• They are in the same period of the periodic table

• They are in the column of the periodic table

• They have similiar properties

The following trends in the period table

1. Metallic character decreases

2. Atomic size decreases

3. Core Charge increases

4. Electronegativity increases

occur when....

• Moving from left to right across the periodic table

• Moving from right to left across the periodic table

• Moving from top to bottom down the periodic table

• Moving from bottom to top up the periodic table

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The electronegativity of an element refers to:

• The electron-repelling power of an atom

• The ability an atom has to lose an electron

• The electron-attracting power of an atom

• The ability an atom has to make another atom an anion

Which atom has the smallest atomic size?

• Lithium

• Flourine

• Rubidium

• Iodine

What is the most reactive elementary group in the periodic table?

• Alkali Earth Metals

• Transition metals

• Nobel gases

• Alkali metals