Periodic Table

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds with other atoms.

Front

Why do strontium and barium have similar chemical properties?

Back

Strontium and barium have similar chemical properties because they have the same number of valence electrons.

Front

Which electrons affect the chemical properties of an atom the most?

Back

The electrons in the outermost shell (valence electrons) have the greatest effect on the chemical properties of an atom.

Front

What is the significance of having 8 valence electrons?

Back

Having 8 valence electrons typically indicates that an atom is stable and less likely to bond with other atoms, as seen in noble gases like argon.

Front

Which element has the greatest attraction for electrons in a chemical bond?

Back

Oxygen has the greatest attraction for electrons in a chemical bond due to its high electronegativity.

Front

What is the state of iodine (I2) at standard temperature and pressure (STP)?

Back

Iodine (I2) is a solid at standard temperature and pressure (STP).

Front

What is the periodic table?

Back

The periodic table is a tabular arrangement of chemical elements, organized by increasing atomic number, electron configuration, and recurring chemical properties.

Front

What determines the position of an element in the periodic table?

Back

The position of an element in the periodic table is determined by its atomic number, which is the number of protons in its nucleus.

Front

What are the main groups of the periodic table?

Back

The main groups of the periodic table include alkali metals, alkaline earth metals, transition metals, halogens, and noble gases.

Front

What is an atom?

Back

An atom is the smallest unit of an element that retains the properties of that element, consisting of protons, neutrons, and electrons.