particles
which subatomic particle has a positive charge
proton
what are valence electrons
the number of electrons on the outermost orbital
what is the mass number and name of an element with 8 protons and 8 neutrons
16- oxygen
elements on the periodic table increase by
atomic number
elements that are shiny, conduct electricity and heat are called
metals
I don't have a charge.. WHO AM I
neutron
how many electrons does Oxygen need to fill its outer shell?
2
this element has a mass of 102 and 45 protons. How many neutrons does it have?
57
the horizontal row on the periodic table is called what
period
which group on the periodic table is composed of inert (not reactive) gases?
noble gases
this particle determines what element you have- the element's identity
proton
how many valence electrons does Iodine have?
7
an atom has 10 protons, 15 neutrons and 10 electrons, what is its mass number
25
a vertical column is called...
group
the elements along the staircase are called
metalloids
the particles of the atom you can find by knowing the atomic number
protons and electrons
which atomic models shows all the electrons for an element
bohr model
an element with a mass number of 11 and an atomic number of 5 has how many neutrons?
6
the number at the bottom of each square on the PT is called what
the atomic mass
which group are the alkali metals in?
group 1
this causes the mass of the nucleus to increase
adding a neutron
Draw the lewis dot structure for Arsenic
Ar with 5 dots
an element with a mass number of 10 and an atomic number of 6 has how many protons?
6
What is the chemical symbol for lead?
Pb
elements in a ________ have similar chemical properties
group