How many electrons can the first ring/orbital shell hold?
2
What is the s-block?
On a periodic table, what are rows also called...
periods
An atom’s mass number is 210 and its atomic number is 85. How many neutrons does the atom have?
125
Element is in the 7th group and 4th period?
What is Manganese
What are elements in Group 5 / 15?
gives away electrons
What is a metal?
The mass number
What is the number of protons and neutrons
What element has the smallest atomic radius?
helium
What is Fluorine?
What is an ion?
Which noble gas is an exception to the group?
Helium
What is the name of the 3 main types of elements on the periodic table?
metals, non-metals, metalloids
Group that would tend to give up / lose 2 electrons.
What is Group 2?
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
Element is located at the 6th period and 2nd group?
What is Barium
The number of neutrons in Oxygen.
What is 8?
What are the elements in group 7 called?
What are the Halogens.
Larger atomic radius: Cl or Sn
Sn
Smaller atomic radius:Na or Zr
Na
Elements in this group tend to create ions with a (-2) charge.
What are Group 6 elements?
What is the first element in period 3?
Sodium
Takes into account the relative abundance of isotopes.
What is average atomic mass?
The majority of the elements on the periodic table are classified as this:
metals
Argon belongs to what specially named group?
noble gases
Group number has the most reactive metals.
What is group 1?
Group 7/17 has a special name called...
What is Halogens?
How many electrons does a neutral atom of iodine have?
53
Elements in red are in what state of matter?
gas