4.1 Intro. to Atoms
4.2 Organizing the Elements
4.3 Metals
4.4 Nonmetals, Inert Gases, and Semimetals
4.5 Radioactive Elements
100
These are the three basic building blocks of atoms.
What are protons, neutrons, and electrons.
100
The number of protons in the nucleus.
What is atomic number?
100
The property that allows heat and electricity to flow freely through a substance.
What is conductivity?
100
This property is the opposite of heat conduction.
What is insulation?
100
The first woman to win a nobel prize, and the only woman to win two nobel prizes, this Polish physicist and chemist discovered the radioactive elements polonium and radium.
Who is Marie Curie?
200
Atoms of the same element with a different number of neutrons.
Who is Ernest Rutherford (or just Rutherford)
200
A vertical column on the periodic table.
What is a family.
200
These properties allow a metal to be stretched into long wires and flattened and shaped.
What is malleable and ductile?
200
Non-metals tend to share or take [blank] when they react with other elements.
What are valence electrons? or just electrons... would b ok.
200
In this form of radioactive decay, high energy, high frequency light is given off.
What is gamma radiation.
300
This man was the first to theorize that the positive charge in an atom is concentrated in a very, very small area called the nucleus. Hint: he did the gold foil experiment, and made the "planetary model" of the atom.
Who is Ernest Rutherford (or just Rutherford)
300
The grandfather of the modern periodic table, this man was the first person to organize the elements into a table.
Who was Mendeleev?
300
For metals, this property decreases/gets smaller from left to right across the periodic table.
What is reactivity.
300
These elements are semiconductors, and have some properties of metals and some of nonmetals.
What are semimetals?
300
These radioactive isotopes are widely used to track industrial, biological or chemical processes by following them through a chemical reaction, or cells in the body.
What are tracers?
400
Get out your periodic table... Find the number of protons, neutrons, and electrons in a Chlorine atom. Mass # = 35 Atomic # = 17
What are p = 17 n = 18 e = 17
400
Families, or vertical columns, in the periodic table are a collection of elements with the same number of [blank].
What are valence electrons?
400
This group is the most reactive group of metals on the periodic table.
What is the alkali group?
400
This family of non-metals is the least reactive family on the periodic table.
What are the noble gases, or inert gases?
400
The element created when thorium-234 undergoes beta decay.
What is protactinum-234?
500
Draw the Bohr model and Lewis dot diagram for the element Boron (atomic # = 5)
needs 3 valence electrons
500
Periods, or horizontal rows, on the periodic table are a collection of elements with the same [blank].
What are energy shells?
500
These huge machines make synthetic elements, the elements that do not naturally occur.
What are particle accelerators?
500
This group tends to share 1 valence electron when it reacts with other elements.
What are the halogens?
500
These are atoms of the same element with a different number of electrons.
What are isotopes?
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