Chemical Bonds Flashcards
Stable Adams are not likely to________.
React
Vocab
When the highest occupied energy level of an Atom is filled with electrons
Stable electron configuration
Why are noble gases stable
Because they have eight valance electrons and helium has two
Vocab
Model of an Atom where each dot represents a valance electron
Electron dot diagram
What does the chemical symbol in the middle of a dot diagram represent
The nucleus and all the other electrons in the atom
Chemical properties of an element depend on the number of____________.
Valance electrons
Vocab
An Atom that has a net positive or negative electric charge
Ion
How is an ion formed
When an electron is transferred, the number of protons and electrons in that atom are no longer balanced
Vocab
An ion with a negative charge
Anion
An anion ________ electrons
Gains
What is named by putting the suffix “ide” on the element name
Anion
An ion with a positive charge
Cation
What is named by simply using the element name
Cation
Cations ________ electrons
Lose
Vocab
The force that holds cations and anions together forms when electrons are transferred from one Atom to another
Ionic bond
Vocab
The force that holds atoms or ions together as a unit
Chemical bond
Vocab
The amount of energy used to remove an electron
Ionization energy
How does an atom become positive or negative
A positive ion loses an electron
A negative ion gains an electron
Vocab
A notation that shows what elements a compound contains in the ratio of Adams or ions of these elements in the compound
Chemical formulas
What subscripts show
The relative number of Atoms of the elements
Vocab
Compounds that contain ionic bonds, shown by chemical formulas
Ionic compounds
The net charge of a compound is _____.
Zero
What are properties of ionic compounds
High melting point
When solid- poor conductor of electricity
When liwuid- good conductor
Shatter when struck with a hammer
Vocab
A chemical bond in which two Atoms share a pair of valance electrons
Covalent bond
What holds the items together in a covalent bond
The attractions between the shared electrons in the protons in each nucleus
Vocab
A neutral group of Atoms that are joined together by one or more covalent bonds
Molecule
