Flashcard#2 Electron configuration

Front

How many electrons can the first energy level hold?

Back

The first energy level can hold a maximum of 2 electrons.

Front

What is the electron configuration of Magnesium?

Back

The electron configuration of Magnesium is 1s² 2s² 2p⁶ 3s².

Front

How many valence electrons does Chlorine have?

Back

Chlorine has 7 valence electrons.

Front

Which element has the electron configuration 1s² 2s² 2p⁶?

Back

The element with this electron configuration is Neon.

Front

What is the electron configuration of Iodine?

Back

The electron configuration of Iodine is [Kr] 5s² 4d¹⁰ 5p⁶.

Front

What is the maximum number of electrons in the second energy level?

Back

The second energy level can hold a maximum of 8 electrons.

Front

Define valence electrons.

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is the significance of electron configuration?

Back

Electron configuration determines the chemical properties of an element and its reactivity.

Front

How do you determine the number of valence electrons from the periodic table?

Back

The number of valence electrons corresponds to the group number of the element in the periodic table.

Front

What is the electron configuration for Potassium?

Back

The electron configuration for Potassium is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹.