The Atom
Which subatomic particles make up the atomic mass?
What is the neutrons and protons.
Write the isotope name for the information below:
10 protons
9 neutrons
10 electrons
What is:
Neon-19
Third period, eight valence electrons.
Argon
As you move across a period, what happens to the reactivity?
The reactivity decreases when going left to right on the periodic table.
The creator of the Periodic Table
Who is Dmitri Mendeleev
This number represents the number of protons in an atom.
What is the atomic number
How many neutrons does potassium-40 have?
What is 21.
Group 14 nonmetal.
Carbon
How many valence electrons does Group 2 have?
2 Valence electrons
This group of elements belongs to the family that has 7 valence electrons.
Who are the halogens.
Where are electrons located?
What is orbiting around the nucleus
Write the isotope name for the following:
33 protons
41 neutrons
33 electrons
What is Arsenic-74
The element with the highest value for electronegativity.
What is Fluorine.
How many valence electrons does Germanium have?
4 valence electrons
What do atoms of elements that are in the same group have in common?
They contain the same number of valence electrons.
A subatomic particle that has about the same mass as a proton.
What is a neutron.
Find the following for the isotope: Cobalt-59.
mass:
protons:
neutrons:
electrons:
What is:
mass: 59
protons: 27
neutrons: 32
electrons: 27
The halogen with electrons in the fifth energy level.
Iodine
Which element has the greatest reactivity?
What is Hydrogen or Lithium or Sodium or Potassium or Rubidium or Cesium or Francium.
These elements are dull, brittle and poor conductors of electricity.
What are non-metals (located on the right side)
Isotopes of an element contain different numbers of what subatomic particle?
What are neutrons.
Find the following for Iodine-126
mass:
protons:
neutrons:
electrons:
What is:
mass: 126
protons: 53
neutrons: 73
electrons: 53
An alkaline Earth metal that has a smaller atomic radius than calcium.
What is Magnesium or Beryllium
Which family on the periodic table has no reactivity? Why?
What is the noble gases because they already have a full outer ring.
How many groups are on the Periodic Table
What is 18