Identification of ions by chemical and spectroscopic means key terms

unknown compound

A substance whose composition or identity is not known and requires testing to identify its ions.

sequence of tests

A systematic approach to conducting multiple tests in order to identify the ions present in a sample.

positive ion tests

Tests used to identify the presence of positively charged ions in a compound.

negative ion tests

Tests used to identify the presence of negatively charged ions in a compound.

observation

The act of noting and recording the results of tests conducted during ion identification.

expected observations

The anticipated results or outcomes that should occur during ion identification tests based on known chemical properties.

instrumental methods

Techniques used to detect and identify elements and compounds with high accuracy and sensitivity.

element identification

The process of determining the specific elements present in a sample using various analytical techniques.

Instrumental methods

Analytical techniques that use instruments to detect and identify elements or compounds, offering high accuracy, sensitivity and speed.

Sensitivity

The ability of an instrumental method to detect very small amounts of a substance, allowing analysis of trace quantities.

instrumental methods

Techniques used to detect and identify elements and compounds, particularly effective for small samples.

sensitivity

The ability of an instrumental method to detect small quantities of a substance.

instrumental methods

Techniques used to detect and identify elements and compounds, known for their accuracy and sensitivity.

chemical tests

Qualitative tests used to identify the presence of specific ions or compounds through observable reactions.

flame emission spectroscopy

An instrumental method used to identify metal ions based on the characteristic line spectrum produced when the ions are heated.

line spectrum

A spectrum that shows the distinct wavelengths of light emitted by a substance, used to identify specific ions in flame emission spectroscopy.

flame emission spectroscopy

An instrumental method that identifies metal ions by analyzing the line spectrum produced when the ions are heated.

line spectrum

A spectrum that shows distinct lines corresponding to specific wavelengths of light emitted by excited electrons in metal ions.

flame emission spectroscopy

An instrumental method used to identify metal ions based on the intensity of light emitted at specific wavelengths.

concentration measurement

The process of determining the amount of a substance in a given volume, often using techniques like flame emission spectroscopy.

instrumental methods

Techniques used to detect and identify elements and compounds with high accuracy and sensitivity.

flame emission spectroscopy

An instrumental method that identifies metal ions based on the characteristic line spectrum produced when the sample is heated.