Parts of an Atom
Name the two parts of an atom
nucleus and electron cloud (DOUBLE THE POINTS!!!)
What does the number of protons tell us?
The atomic number or the element identity
What are the columns on the periodic table called and what do they mean?
Groups, valence electrons
What is the PEN for Oxygen?
P = 8; N = 8, E = 8
What is the most abundant element in the human body? (which takes up the most mass)
Oxygen
Name the 3 subatomic particles
proton, neutron, electron
What do we call the electrons in the outermost energy level?
valence electrons
What are the rows on the periodic table called and what do they mean? (DOUBLE POINTS!!!)
Periods, number of energy levels
What is the PEN for Potassium?
P=19, N=20, E=19
Who created the Periodic Table?
(TRIPLE THE POINTS!!!)Demitri Mendeleev
Where do each of the 3 subatomic particles live?
Protons and neutrons in the nucleus; Electrons in the electron cloud
What do the valence electrons tell us?
The reactivity of the element
What happens to reactivity of the elements as you move from left to right on the periodic table?
It decreases
What is the PEN for Argon?
P=18, N=22, E=18
Which of the following was the first manmade element? Plutonium, Radium, Technetium, or Einsteinium
Technetium
What are the charges of each subatomic particle?
Proton = positive, Neutron = neutral, Electron = negative
What happens when an element has 8 valence electrons?
It cannot bond with anything. It is not reactive.
What happens to the number of energy levels as you travel from the top of the periodic table to the bottom?
They increase
What is the PEN for Gold?
P=79, N=118, E=79
What element is the only metal that is liquid at room temperature?
Mercury
What are the sizes of each subatomic particle? (use numbers)
Proton = 1 amu, Neutron = 1 amu, Electron = 1/1000 amu
What happens when you add an electron to an element that already has a neutral charge?
An Ion is created. It turns negative.
Name three of the different types of elements (remember the colors on the PT, don't look!!)
Alkali metals, Alkaline earth metals, other metals, nonmetals, metalloids, noble gases, halogens, actinides, lanthinides
What is the PEN for Silver?
P=47, N=61, E=47
What element's chemical symbol is "Sb"?
Antimony