Periodic Table 1
The number of energy levels Sodium has
3
Electron in the outermost shell
Valence Electrons
A row on the periodic table.
What is period?
The vertical columns of the periodic table
groups/families
This noble gas has less than 8 electrons
What is helium?
The classification of the Periodic Table
Metals, nonmetals, metalloids
The name of elements in Group 8A/18
Noble Gases
The specific energies that electrons can have when occupying specific orbitals or shells
Energy levels
Name 3 elements of Carbon´s Family
Carbon/ Silicon/ Germanium, Tin, Lead, Moscovium
The subatomic particle that determines an atom's identity
What is a proton
This class of elements have properties of both metals and nonmetals.
Metalloids
The element in group 4 with 2 energy levels
What is Boron?
The element with 5 valence electrons in the 4th Row/Period
What is Arsenic?
The number of valence electrons determines this characteristic of an element
What is reactivity?
Does not belong to any group on the periodic table but has one valence electron
Hydrogen
These are the properties of nonmetals.
What are brittle, poor conductors of electricity and heat, dull Must get 2/3
The number of atoms in the molecule 2C6H12O6
What is 48
Extremely reactive elements belong in these group(s) on the periodic table
What are Groups 1 and 7?
These are properties of metals
What is shiny, malleable, ductile and good conductor of heat and electricity Must get 2/4
The conductivity of metalloids
What are semi-conductors
The most dense structure of an atom, which is called a ____________ and is made up of ____________
What is nucleus, and protons and neutrons
An atom is considered electrically neutral because
The number of protons equals the number of electrons
The charge of an atom of Carbon that has 6 protons and 7 electrons
What is -1
The formula for 2 molecules of Carbon Dioxide
What is 2CO2
The part of an atom that takes up the most volume
What is the electron cloud?