WorksheetsScience Chapter 11
Total questions: 10
Worksheet time: 2mins
(a) is a force that holds two or more atoms together.
What model represents valence electrons in an atom as dots around the element's chemical symbol?
(a)
Different electrons in an atom have different amounts of what?
Atoms
Energy
Valence electrons
Neutrons
What is an example of polar molecule?
Water
Gas
Oil
Salt
A (a) is a chemical bond forced when two toms share one or more pairs of valence electrons
What is a chemcal formula?
A group of chemical symbols/numbers that repsent the elements and the number of atoms of each element that make up a compound
A group of chemicals numbers that do not represent the elements and the number of atoms of each element that make a compound
A group of nonchemical numbers and symbols that represent the elements and the number of protons of each element that make up a compound
ok
What is an ion?
An atom that is electrically neutrla from losing electrons and protons
An atom that is no longer electrically neutral from gaining or losing valence electrons
An atom is is electrically neutral from gaining or losing valence electrons
An atom that is electrically stable from nothing
What is a metallic bond?
A bond created when atoms are electrons
A bond created when chemical atoms share their pooled valence electrons
A bond not created when metal atoms share their pooled valence electrons
A bond created when metal atoms share their pooled valence electrons
What is an ionic bond?
The force between atoms
The force between non-positive ions in an ionic compound
The force between both positively and negatively charged ions in an ionic compound
The attraction between negatively charged ions in a metallic compound
What is a property of a covalent bond?
medium boiling and melting points
hihg boiling and melting point
low melting and boiling points
dissolves in water
