Periodic Table
The Russian chemist credited with creating the modern periodic chart is _____________________ .
Dmitri Mendeleev
What color was Cu in the Flame Test Lab?
green
The modern periodic table arranges elements in increasing __________________ .
atomic number / # protons
What are the atomic number, mass number, number of protons, neutrons, and electrons for Lithium +?
3, 7, 3, 4, 2
Sublevel p holds ___________________ orbitals and __________________ max number of electrons.
3, 6
Where on the periodic chart are the Alkali metals?
Far left column, group
educated guess, prediction
What 1 property defines the identity of an element?
# protons
What are the atomic number, mass number, number of protons, neutrons, and electrons for Chlorine -1?
17, 35, 17, 18, 18
Sublevel d holds ______________ orbitals and _________________ max number of electrons.
5, 10
Where are the halogens on the periodic chart?
second column/group from the far right
What is data?
information collected and organized
Using the formula D = m/V. What is the volume if the density is 30 g/mL and a mass is 210 g?
7 mL
What are the atomic number, mass number, number of protons, neutrons, and electrons for Magnesium 2+ ?
12, 24, 12, 12, 10
Electrons will fill orbitals with the lowest energy level first is the _____________________.
Aufbau principal
Where are the non-metals on the periodic chart? What are there common characteristics?
right of the stair case step line; dull, not conductive, brittle
A substance on a balance is measuring ______________________.
mass / weight
How are electrons organized within the atom?
Principal energy level-->sub level-->orbital
What are the atomic number, mass number, number of protons, neutrons, and electrons for Arsenic 3- ?
33, 75, 33, 42, 36
Only 2 electrons in each orbital is the _________________________.
Pauli's Exclusion Principle
What are the common characteristics of the noble gases?
do not react, inert, found on the far right of the chart, have 8 outer electrons
The reason to write up a formal Lab report is _____________________.
so it can be repeated
List 6 physical properties of substances.
melting point, boiling point, conductivity, color, odor, density
What are the atomic number, mass number, number of protons, neutrons, and electrons for Silver +1 ?
47, 108, 47, 61, 46
Electron's enter orbitals one at a time says ___________________.
Hund's rule