The Atom
The center of an atom.
What is the nucleus?
How are the elements arranged on the periodic table?
What is in increasing atomic number?
Shiny/Lustrous
What is a physical property of metals?
4 protons
6 neutrons
What is a mass number of 10 amu?
What is Rutherford's Gold Foil Eperiment?
Positively charged particle.
What is the proton?
Why are elements arranged in vertical families?
Share similar characteristics.
Brittle.
What is a physical property of a nonmetal.
19 protons
18 electrons
What is a net charge of 1+?
Organized periodic table by increasing atomic mass.
Who is Demetri Mendeleev?
Matter
What is anything that has mass AND volume.
118
What is the number of elements on the current periodic table?
Poor conductors of heat & electricity.
What is a physical property of a nonmetal.
Am I neutral or what?
Protons: 16
Neutrons: 15
Electrons: 18
What is not, -2 charge?
The scientist credited with discovery of the electron.
Who is J.J. Thomson?
Particle without a charge.
What is a neutron.
Family/Group 1A
What is alkali metals?
Malleable
What is a physical property of metal?
Who am I?
Protons: 15
Neutrons: 16
Electrons: 18
Who is phosphorous (P)?
Plumbs in Thomson model.
What is used to represent the electron.
Contributes the least amount of mass to an atom.
What is an electron?
Increasing reactivity.
What is reactivity as you move down a family/group?
Shiny yet brittle.
What is a physical property of a metalloid (Silicon)?
What happens if I change the number of protons?
What is change the identity of the element?
Planetary model
What is Niels Bohr's model.