Atomic Structure Category
What is an atom?
Smallest unit of matter
What is atomic mass?
The number of protons and neutrons inside the nucleus
What is a metal?
Solid substance that conducts heat and electricity.
What is an ionic bond?
Attraction between oppositely charged ions.
What is a covalent bond?
Forms when two atoms share electrons.
What are protons and neutrons?
Protons are particles inside the nucleus that have a postitive charge while neutrons are particles in the nucleus that have no charge.
Who invented the periodic table?
Dimitri Mendeleev
What is an alloy?
A mixture of two or more metals.
What is an ion?
Atom or atoms that have become electrically charged.
What is a double bond?
When two pairs of electrons are shared between atoms.
What is the name for the electrons furthest away from the nucleus?
Valence Electrons
The periodic table is organized into _______ and _________.
Periods and groups.
What does it mean if a metal is ductile?
Can be stretched out
What are polyatomic ions?
Ions that are made of one or more atoms.
What is a polar bond?
When two atoms share electrons unequally.
The number of protons inside the nucleus is called _____.
Atomic number
When was the first periodic table created?
1869
What does it mean for something to be malleable?
Means it can be pounded into a different shape.
What happens when an ion loses an electron?
It becomes positively charged.
What is a nonpolar bond?
A bond where atoms’ electrons are shared equally.
What is the electron dot structure used for?
To count the number of electrons an atom has
Each square on the periodic table has which 4 things?
Atomic number, chemical symbol, name, and atomic mass
Explain what corrosion is.
When metals bond with oxygen.
What are the properties of ionic compounds?
Crystal shape, high melting points, electrical conductivity
What is the difference between a covalent and ionic bond?
In Covalent bonds atoms share electrons and in ionic bonds atoms are oppositely charged and either lose or gain electrons.