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