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CHEMISTRY OF THE ELEMENTS: Nitrogen
Chemistry Of The Elements: Sulphur
MATTER - PROPERTIES AND TRANSFORMATION: Acidic And Alkaline Solutions
MATTER - PROPERTIES AND TRANSFORMATION: Atomic Structure And The Periodic Table
MATTER - PROPERTIES AND TRANSFORMATION: Atoms
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Carbon
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Hydrogen
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Oxygen
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Phosphorus
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - The Halogens
MATTER - PROPERTIES AND TRANSFORMATION: Structure And Bonding

5/77 MCQs for:

MATTER - PROPERTIES AND TRANSFORMATION: Atomic Structure And The Periodic Table

The electronic configuration of potassium (Z=19) is:

2:8:8:1.

2:8:8.

2:8:8:2.

2:8:9.

What defines a non-valence electron?

An electron involved in chemical bonding.

An electron that is always lost in reactions.

An electron in an inner, completely filled shell that does not participate in bonding.

An electron with a positive charge.

The electronic configuration of Calcium (Ca) is 2, 8, 8, 2. In which period and group is Calcium located?

Period 3, Group 2.

Period 4, Group 2.

Period 2, Group 2.

Period 4, Group 18.

The maximum number of electrons that a quantum shell can hold is given by the formula?

2n².

2n+1.

n².

2n.

Which part of an atom contains protons and neutrons?

Electron cloud.

Energy levels.

Valence shell.

Nucleus.