Elements and the Periodic Table

Flashcards about elements, atoms and the periodic table.

What are Elements?

What are elements? Elements are the simplest forms of matter and are defined by their unique atomic structure. Each element consists of atoms with a specific number of protons, determining its unique physical and chemical properties.

What is Atomic Number?

What is Atomic Number? The atomic number is the number of protons found in the nucleus of an atom. It is a fundamental property of an element, dictating its position on the periodic table and is represented by the symbol z.

What is Helium's atomic number?

What is the atomic number of Helium? Every helium atom has two protons, giving it an atomic number of 2.

What is Iron's atomic number?

What is the atomic number of iron? Every iron atom has 26 protons, so the atomic number of iron is 26.

What is a Neutral Atom?

What is a Neutral Atom? A neutral atom is an atom that has an equal number of protons (positive charge) and electrons (negative charge), resulting in no net electrical charge.

What is the Periodic Table?

What is the Periodic Table? The periodic table is a tabular arrangement of the chemical elements, organized by their atomic number, electron configurations, and recurring chemical properties. Elements are listed in order of increasing atomic number and grouped into columns (groups) based on similar characteristics.

What is a Chemical Symbol?

What is a Chemical Symbol? A chemical symbol is a one- or two-letter abbreviation used to represent a chemical element. Each element has a unique symbol, which is used internationally.

What is the Chemical symbol for hydrogen?

What is the chemical symbol for hydrogen? The chemical symbol for hydrogen is H.

What is the Chemical symbol for aluminum?

What is the chemical symbol for aluminum? The chemical symbol for aluminum is Al.

What is the Chemical symbol for lead?

What is the chemical symbol for lead? The chemical symbol for lead is Pb which comes from the Latin word plumbum.

What is Nitrogen?

What is Nitrogen's atomic number? Nitrogen has an atomic number of 7, meaning every nitrogen atom has 7 protons.

What is Phosphorus?

What is Phosphorus? Phosphorus has an atomic number of 15, indicating that each phosphorus atom contains 15 protons. Its chemical symbol is P.

What is Hg?

What is Hg? Hg is the chemical symbol for mercury. Mercury's atomic number is 80.