Atoms
Atoms and Periodic table
periodic table
Random
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
How many protons are in the following element?
36
100
What is an isotope?
Elements of atoms with the same number of protons but different neutrons
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
Two isotopes of Magnesium are Mg-24 and Mg-26. How are these isotopes different from each other?
The number of neutrons and atomic mass
200
Which particle has the lightest mass
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
Which element is in period 2 and is an alkali metal
Lithium (Li)
300
How many valence electrons does Aluminum have?
3
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
What is one main way to separate metals from nonmetals on the periodic table?
Metals are on the left of the zig zag(stairstep), metalloids
Non metals are on the right of the zig zag(stairstep), metalloids
metals are mainly solids, hard, conductors, shiny, malleable or ductile
nonmetals are mainly gases, brittle, insulators
400
This element has properties most 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
Which of the following elements are classified as metals?
Iodine, Carbon, Sulfur, Silicon, Magnesium, Aluminum
500
Which of the following elements have similar properties to Magnesium?
Calcium, Lithium, Sodium
Calcium (Since elements in the same group/family have similar chemical properties. )
500
Silico 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