The different colors for the following elements that are used in molecular models:
Hydrogen
Carbon
Nitrogen
Oxygen-red
Sulfur -yellow
Phosphorus-orange
Chlorine-green
What are:
Hydrogen-White
Carbon-Black
Nitrogen-Blue
Oxygen-red
Sulfur -yellow
Phosphorus-orange
Chlorine-green
An element that is generally shiny. It is easily pulled into wires or hammered into thin sheets, and is a good conductor of electricity and thermal energy.
What is a metal?
Most elements are bonded with other atoms to make
What are molecules and crystals?
A substance characterized by being composed of atoms all possessing the same number of protons in the nucleus.
What is an element?
Two or more different elements chemically bonded together.
What is a compound?
A mixture in which the presence is visible to the eye, possibly with the aid of a microscope.
What is a heterogeneous mixture?
The type of molecule model shown below
What is ball and stick?
An element that has no metallic property.
What is a nonmetal?
The two basic types of substances consists of these.
What are pure substances and mixtures?
A chart of the elements arranged into rows (periods) and columns (groups) according to their physical and chemical properties.
What is the Periodic Table of Elements?
The smallest group of atoms of a substance that has the overall symmetry of a crystal of that substance, and from which the entire lattice can be built up by repetition in three dimensions.
What is a unit cell?
A mixture with a composition that is uniform all the way down to the molecular level. Also called a solution.
What is a homogeneous mixture?
Two-atom molecules (molecules of the same element). They are molecules of an element.
What are diatomic molecules?
An element that has physical properties of both metals and nonmetals.
What are metalloids?
The two types of mixtures are these.
What are homogeneous mixture and heterogeneous mixture?
These are the three general categories that the Periodic Table of Elements are divided into.
What are metals, nonmetals, and metalloids?
The structural framework in which the atoms are arranged in a crystal.
What is crystal lattice?
A compound made up of two or more substances that are not chemically linked.
What is a mixture?
These are the three elements that occur naturally as diatomic molecules.
What are hydrogen, oxygen, and nitrogen?
Metals that are found as free elements include...
What are gold, silver, nickel, platinum?
A pure substance includes these two.
What are elements and compounds?
In general, the metallic properties of elements increase from ______ to _____ AND _____ in a group on the periodic table
What is right to left and down?
The atomic structure of a substance held together by ionic bonds, characterized by the orderly arrangement of atoms in a rigid lattice structure.
What is a crystal?
An element that can react with a metal and form a salt (an ionic bond of cations and anions).
What is a halogen?
A chemically bonded cluster of atoms; the smallest particle in compounds formed by covalent bonding between nonmetals (including hydrogen).
What is a molecule?
These are the five properties of metals.
What are
luster
malleability
ductility
Density, melting point, boiling point
Solid at room temperature?
A diamond is considered this type of substance.
What is a pure substance because it is an element?
He is the Russian scientist who first arranged elements according to their atomic weight.
Who is Dimitri Mendeleev?
The obvious answer the meme below.
What is hehehe?
These show how close the center of the atoms are to one another and how much space the molecule occupies.
What is a space filling model?