Pinky
Brain
Genius
Insane
Take over the world!
100
T/F the modern periodic table is arranged in order of increasing atomic mass
False, it is arranged in order of increasing atomic number NOT by atomic mass.
100
An element has 25 electrons how many protons does it have?
25, the number of electrons = the number of protons in a neutral atom.
100
What does the greek word atomos mean?
indivisible, or not able to be cut
100
The 3 subatomic parts of an atom
What is proton, neutron, electron
100
The charge of neutrons
What is neutral or no charge?
200
A property of nonmetals, If something is hammered and breaks or shatters it is said to be this
What is brittle?
200
An element has 8 electrons, What is this element? (you may use your periodic table)
Oxygen, remember # of electrons = # of protons and the number of protons = the atomic number.
200
Which electron shell the is valence shell?
The outermost shell.
200
What generally happens to atomic size (radius, not mass) as you go from the top of the periodic table to the bottom?
Increases Side note: Atomic mass also increases.
200
What does periodic mean?
Occurs in a regular repeating pattern, like a calandar, clock or patterned shirt.
300
Shininess, like on a new penny
What is luster?
300
The least reactive elements
What are the nobel gases?
300
Metals are located here in the periodic table
To the left of the metalloids or to the left of the "step".
300
T/F, atoms of a given element are all different
False, for a given element they are alike
300
Why is the periodic table called “periodic”? (Your answer should include a definition of periodic AND what specifically is periodic about the table)
Periodic means to occur in a regular or repeating pattern. The periodic table is organized in a way that the physical and chemical properties/characteristics of the elements repeat in a regular pattern.
400
Means able to be hammered into thin sheets, the opposite of brittle
What is malleable?
400
My total number of protons + neutrons = 35, what element am I? (you may use your periodic table)
What is chlorine? Recall that protons +neutrons = atomic mass number. The average atomic mass of chlorine is 35.4 which can be rounded to 35
400
The elements of the periodic table are organized into families based on their properties. What is the main property used to define a family on the periodic table?
Reactivity (how the element reacts with other substances)
400
What is the atomic mass of an element with 6 protons, 6 neutrons, and 6 electrons? What is this element? (you may use your periodic table)
12, Atomic mass = protons + neutrons The element is Carbon because the atomic number of Carbon is 6 and atomic number= the number of protons.
400
What happens to the atoms size (radius, not mass) as you go from left to right on the periodic table?
radius tends to decrease Side note: Atomic mass increases from left to right
500
Means able to be drawn out into a long thin wire
What is ductile?
500
Give the name and group number of the 2 most reactive groups of elements
What is Group 1: Alkali Metals and Group 17: Halogens
500
List 4 general properties of nonmetals
Poor conductors of heat and electricity Brittle (not malleable) Not ductile no luster Many are gases
500
List at least 4 general properties of metals.
Luster malleable ductile good condutors of heat and electricity usually have high melting point are solid at room temp. except mercury
500
Would an element have more in common with another element in its row or in its column? What do we call the rows and columns
More in common with an element in its column. Columns are called groups/families because they are related. Rows are called periods.
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