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Atomic Structure
Chemical Bonds
Chemical Formulas
How atoms combine
Misc.
100
The center of an atom.
What is the nucleus.
100
Two or more elements that are chemically bonded form this.
What is a compound.
100
Atoms form these by losing electrons, by gaining electrons, by pooling electrons, or by sharing electrons.
What are bonds.
100
Noble gases were thought to be inert. What does it mean for an atom of an element to be inert?
What is non-reactive.
200
Negatively charged particle.
What is an electron.
200
Ions held close together by this.
What is an ionic bond.
200
An atom this no longer neutral becasue it has lost or gained an electron is this.
What is an ion.
200
This is formed when metal atoms share their pooled electrons.
What is a metallic bond.
200
The first energy level of an atom can contain no more than this many electrons.
What is 2.
300
Diagram that shows the number of electrons in the outer shell.
What is an electron dot diagram.
300
A force that holds two atoms together.
What is a chemical bond.
300
Atoms that share electrons form this type of bond.
What is covalent.
300
This bond occurs when similar atoms share the same number of electrons.
What is a non-polar bond.
300
Halogens have this number of electrons in their outer shell.
What is 7.
400
The number of electrons needed in the outer shell to make the atom stable.
What is eight.
400
Electrons are shared unequally in this type of chemical bond.
What is a polar bond.
400
When an atom gains an electron and becomes negatively charged, we refer to it as this.
What is an negative ion.
400
The number and arrangement of electrons in the electron cloud determines the ________ and _________ properties of an element.
What are chemical and physical properties.
400
This group of elements are extremely reactive with water.
What are alkali metals.
500
The space around the nucleus in which an atom's electrons travel is called this.
What is an electron cloud.
500
All noble gases have this in common.
What is a stable outer shell.
500
A molecule consisting of two hydrogen atoms joined in a covalent bond would be written as _______.
What is H2
500
The farther an electron is from the nucleus, the greater this is for the electron.
What is energy.
500
A combination of chemical symbols and numbers.
What is chemical formula.