Periodic Table 1
This subatomic particle has a negative charge and occupies regions around the nucleus.
What is an electron?
The transition metals can be found in which sublevel 'block'?
d-block
On a periodic table, what are rows also called...
periods
Argon belongs to what specially named group?
noble gases
These are the electrons located in the outermost occupied energy level of an atom.
What are valence electrons?
TRIPLE POINTS: An orbital can hold a maximum of this many electrons.
What is 2 electrons?
Group 17 has a special name called...
Halogens
What is the first element in period 3?
Sodium
What element has the smallest atomic radius?
helium
What are 3 physical properties of metals?
luster, malleable, ductile, good conductors, donate electrons, high density, high melting point
An element in Group 1 generally has this many valence electrons.
What is 1?
This type of orbital can hold a maximum of 6 electrons and has three orbitals
What is the p sublevel?
What is the name of the 3 main types of elements on the periodic table?
metals, non-metals, metalloids
Smaller atomic radius:Na or Zr and WHY?
Na, because it is higher than Zr.
The staircase follows what group of elements down the periodic table?
metalloids
What are three physical properties of non-metals?
not shiny, not malleable (brittle), not ductile, poor conductors (good insulators), gain electrons, low density, low melting point
An element with 6 valence electrons belongs to this group.
What is Group 16?
Write the complete electron configuration for an atom of phosphorus.
What is 1s² 2s² 2p⁶ 3s² 3p³?
LOSE IT OR GAIN IT (if you get it wrong you lose the points, if you get it right you gain them): What are the elements from 89 -103 called (family)?
Actinides
Larger atomic radius: Cl or Sn and WHY?
Sn, because it is more down and to the left than Cl
Elements in red are in what state of matter?
gas
What element is grouped with alkali metals even though it is not an alkali metal.
Hydrogen
DOUBLE POINTS: Draw the Lewis dot structure for an atom of chlorine.
What is Cl with 7 dots surrounding the symbol?
According to the Aufbau principle, electrons fill lower-energy orbitals before occupying these.
What are higher-energy orbitals?
Order the following elements in order of largest to smallest atomic radius: Li, Na, K, or Rb? Explain the trend that allows you to determine your answer.
Rb>K>Na>Li because atomic radius increases as you move down a group.
What two elements are liquids at room temperature?
Mercury and Bromine
Which family (name, not number) is the most reactive metals family with one valence electron?
Alkali Metals
An atom has 17 electrons. Identify the element and write its short-hand (noble gas) electron configuration.
Chlorine; [Ne] 3s² 3p⁵
An unknown element has 2 valence electrons and is located in Period 3. Identify the element, its group, and its Lewis dot structure.
What is magnesium (Mg), Group 2, with 2 valence-electron dots?
State the four orbital blocks (sublevels) and the maximum number of electrons that each block can hold.