Atoms
Atoms and Periodic table
Periodic Table
Element, Compound, or Mixture
Random
100
the 3 subatomic particles
proton, neutron, and electron
100
How many valence electrons do group 2 elements have?
2
100
These are vertical columns on a periodic table
groups
100
Element, Compound, or Mixture?
Jello (ready to eat)
Mixture (Homogeneous)
100
How many valence electrons does Aluminum have?
3
200
the location of protons and neutrons
the nucleus
200
This number tells you the number of protons
the atomic number
200
These are horizontal rows on a periodic table
periods
200
Element, Compound, or Mixture?
H2O2
Compound (Hydrogen Peroxide)
200
Which subatomic particle has a negative charge?
electrons
300
The atomic number is equal to these positive particles
protons
300
An element is in period 3, group 18 and in the noble gas family. Would it be classified as a metal, nonmetal or metalloid?
nonmetal
300
The atomic number tells us how many __________ an element has in its nucleus.
protons
300
Element, Compound, or Mixture?
Co
Element
300
Nonmetal
7 valence electrons
3 energy levels
Chlorine (Cl)
400
An element is in period 3, family 14. How many energy levels would the Bohr model of this element have?
3
400
Name 1 element that acts similar to Ar
helium, neon, krypton, xenon or radon
400
How many neutrons does the following element have?
16
400
Element, Compound, or Mixture?
C6H12O6
Compound (Glucose)
400
An element that has properties similar to Sulfur.
Oxygen, Selenium, Tellerium, Pollonium
500
the outermost electrons
valence electrons
500
This is the number of neutrons in the element Cl (chlorine).
18
500
Name 3 elements that are metalloids.
Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Astatine
500
Compound (NaCl)
500
Silicon is shiny, yet, brittle. It allows some electricity to pass through it, but not too much, which means it is a semiconductor. Is silicon a metal, nonmetal or metalloid?
metalloid