Generally, molecules are drawn using the symbols of the atoms (remember the symbol can be found on the Periodic Table) that are connected with straight lines. These lines represent the covalent chemical bonds that are formed between the atoms making up a molecule.
What does a line drawing represent chemistry?
What does line mean in chemical formula?
Lewis structures Each line represents the two electrons of a single bond. Two or three parallel lines between pairs of atoms represent double or triple bonds, respectively.
What is a dotted line in chemistry?
A solid line indicates that the bond exists in the plane of the drawing surface. A wavy line indicates that the stereochemistry of the bond is unknown. A dotted line indicates that the bond is not a full bond, it is only a partial bond as in a hydrogen bond or a partially formed or broken bond in a transition state.
What does a straight horizontal line on a graph mean?
In more simple terms, a horizontal line on any chart is where the y-axis values are equal. If it has been drawn to show a series of highs in the data, a data point moving above the horizontal line would indicate a rise in the y-axis value over recent values in the data sample.
What is the straight line symbol called?
What is the vertical bar ( | )? The vertical bar ( | ) — also called the vertical line, vertical slash, pipe, pipe symbol or upright slash — is a symbol used in mathematics, computing and other areas to represent a specific type of logic or operation, depending on its context.
What are lines in organic chemistry?
The carbon atoms and the hydrogen atoms attached to them are not shown. Only the bonds between the carbon atoms are shown as lines. The vertices and end of lines represent the carbon atoms. Any unfilled valences on carbon are assumed to be filled by hydrogen atoms.
What is line bond notation?
Bond line notation is a convention used by organic chemists to represent molecular structures. A bond between two atoms is depicted as a line in this manner. The bound atoms’ positions are represented by the line’s ends. Only non-carbon and non-hydrogen atoms are specifically depicted.
What is a bond line?
A bondline can be defined as the structure including – but not limited to – the adhesive between two structurally bonded parts. The performance of the adhesive connection depends largely on the behaviour of adherends, which is why the definition of a bondline is broader than the adhesive bonding paste in itself.
What does a dashed line mean in a bond?
A dashed line indicates that the bond is extending behind the plane of the drawing surface. A bold-wedged line indicates that the bond is protruding out from the plane of the drawing surface. A solid line indicates that the bond exists in the plane of the drawing surface.
What is a line angle structure?
Even more abbreviated is a line-angle formula, also called a skeletal structure, in which carbon atoms are implied at the corners and ends of lines, and each carbon atom is understood to be attached to enough hydrogen atoms to give each carbon atom four bonds.
How many electrons does a single line represent?
(In Lewis structures, a line represents two electrons.) Atoms tend to form covalent bonds in such a way as to satisfy the octet rule, with every atom surrounded by eight electrons.
What do dotted lines on a Lewis structure represent?
Lewis dot diagrams use dots arranged around the atomic symbol to represent the electrons in the outermost energy level of an atom. Single bonds are represented by a pair of dots or one line between atoms. Double bonds are represented by two pairs of dots or two lines between atoms.
What type of bonds do the dotted lines represent?
The force of attraction, shown here as a dotted line, is called a hydrogen bond. Each water molecule is hydrogen bonded to four others. The hydrogen bonds that form between water molecules account for some of the essential — and unique — properties of water.
What does dotted line represent in drawing?
Solid Versus Dashed or Dotted Lines The first and most basic rule of lines in design drawings is that solid lines indicate visible or “real” objects or surfaces, while anything drawing with dots and/or dashes indicates something that is unseen or “hidden” from view.
What does a horizontal linear line mean?
Horizontal Line Definition The meaning horizontal line is a straight line that is mapped from left to right and it is parallel to the X-axis in the plane coordinate system. In other words, the straight line that does not make any intercept on the X-axis and it can have an intercept on Y-axis is called horizontal line.
What happens when the line is horizontal?
This relationship always holds: a slope of zero means that the line is horizontal, and a horizontal line means you’ll get a slope of zero. (By the way, all horizontal lines are of the form “y = some number”, and the equation “y = some number” always graphs as a horizontal line.)
What does the horizontal line test tell us?
The horizontal line test checks if a function is one-to-one. A one-to-one function has only one x-value for each y-value. If a horizontal line passes through a graph more than once, the function can’t be one-to-one.
What does vertical line mean?
Definition of vertical line : a line perpendicular to a surface or to another line considered as a base: such as. a : a line perpendicular to the horizon. b : a line parallel to the sides of a page or sheet as distinguished from a horizontal line.
What is the horizontal line and vertical line?
A vertical line is a straight line that travels from top to bottom or bottom to top and runs parallel to the y-axis. A horizontal line is a straight line with an x-axis intercept but no y-axis intercept.
What does a zero with a vertical line through it mean?
The slashed zero glyph is often used to distinguish the digit “zero” (“0”) from the Latin script letter “O” anywhere that the distinction needs emphasis, particularly in encoding systems, scientific and engineering applications, computer programming (such as software development), and telecommunications.
What do two lines mean in chemistry?
double lines (=) indicate a double bond between two atoms (i.e., involving two electron pairs), and triple lines (≡) represent a triple bond, as found, for example, in carbon monoxide (C≡O). Single bonds consist of one sigma (σ) bond, double bonds have one σ and one pi (π) bond, and… In chemical bonding: Multiple bonds.
How is a line structure different from a Lewis structure?
Lewis dot structures are two-dimensional representations of molecules that illustrate each atom as its chemical symbol. Lines indicate bonds to other atoms, and non-bonding electrons are represented as small dots next to the chemical symbols.
When bond is represented by the thick line or dashed line then it is?
A wedge and dash projection is a drawing, a means of representing a molecule in which three types of lines are used in order to represent the three-dimensional structure: Solid lines to represent bonds that are in the plane of the paper. Dashed lines to represent bonds that extend away from the viewer.
What do wedge and dash represent?
Wedge-and-dash definition (chemistry) A method of representing the three-dimensional structure of a molecule in which solid lines represent bonds in the plane of the image, wedges represent bonds towards the viewer and dashed lines represent bonds away from the viewer.