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45 Cards in this Set

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  • Back
What is the amount of energy required to remove an eleectron from an atom?
ionization energy
What does it mean for an element to be able to be bent into a shape?
malleable
The protons and neutrons added together are equal to the?
Atomic mass
What do atoms give off when they absorb energy,their electrons jump to high energy levels, and then fall back to their regular energy level?
Light
What is a positively charged sub-atomic particle called?
A proton
What are positvely charged electron donors that tend to be metals called?
cations
What is the industry that benefited from the production of aluminum?
Aviation (flight)
Atoms with different amounts of neutrons are called?
isotopes
What property are most of the elements on the periodic table?
Metals
What is the outer most shell of an atom called?
Valence
If an element symbol has two letters, the second letter is always going to be..?
lowercase
What is one of the earliest alloys ever created?
bronze
Flourine-Iodine are members of this family..?
Halogens
The number of protons or electrons is called?
the atomic number
What is the family that is also known as the ore formers?
Chalcogens
Who is the scietist that thought that atoms look a lot like plum pudding?
Thomson
What is it called wehn an element is able to be pulled or stretched into wire?
ductile
What part of the atoms would you find the electrons?
energy leve/shell
What is the family called whose charge is +1?
alkali
What is it called when the atom has an ability to accept electrons?
electronegativity
Who was the greek philosophist that coined the term atomos meaning invisible?
democritus
Who invented the periodic table in 1869?
Mendeleev
What is the neutral charged sub-atomic particle called?
neutrons
What is a column on the periodic table called?
family
What is the rule whereby atoms require eight ecetrtons in the valence shell?
the octet rule
Groups 13-15 on the periodic table are called what?
metalloids
Who is the woman that discovered radium and polonium?
curie
Helium-Xenon are members of this family?
Noble Gasses
What is it called when atoms with a net charge are either called a cation or an anion?
ion
What type of atoms tend to be anions?
nonmetals
Waht is an alloy for carbon, iron, and chromium?
steel
metals are good conductors of both electricity and...?
heat
what is a negative charged sub-atomic particle called?
electron
What were the early chemists called that tried to make gold out of everything?
alchemists
who was the scientist that came up with the planetary model of the atom, whereby the electrons were believed to orbit in shells?
BOhr
Protons and Neutrons make up what part of the atom?
The nucleus
A combination of metals forming a lighter stronger metal is called?
alloy
The first shell of an atom can hold how many electrons?
2
What is the atomic radius?
the size of an atom
What is electronegativity?
the ability of an atom to attract or take electrons
What is ionization potential?
the amount of energy required to remove an electron
What is an ion?
atoms that give or take electrons
What did Wihhelm Roentgen discover?
x-rays
What did Rutheford discover?
he discovred alpha rays (lowest energy), beta rays (middle energy), and gamma rays (highest energy)
What happens to energy as you move farther from the nucleus?
energy increases