Noble Gases
Silicon + 4 electrons
What is Argon?
Be
What is Beryllium?
[He]2s22p2
What is Carbon?
If an atom has 15 electrons, it will have this many protons
What is 15?
Periods 2-7, Group 2
What are alkaline earth metals?
Fe
What is Iron?
Hydrogen + 1 electron
What is Helium?
Atomic #20
What is Calcium?
[Kr]5s24d2
What is Zirconium?
The number of neutrons in a typical molecule of Selenium
Atomic #34, Mass of 78.96
What are 45 neutrons?
Periods 1-7, Group 18
What are Noble Gases?
Atomic #23
What is Vanadium?
Magnesium - 2 electrons
What is Neon?
Atomic #12
What is Magnesium?
[Xe]6s2
What is Barium?
# of protons in a typical Molecule of Thallium
What are 81 protons?
Periods 1-5, Found in groups 1, 14-17
What are reactive nonmetals?
Mo
What is Molybdenum?
Lead + 4 electrons
What is Radon?
Ra
What is Radium?
[Ne]3s1
What is Sodium?
# of electrons in a typical molecule of Sodium
What are 11 electrons?
Periods 5-7, Groups 3-12
What are transition metals?
Atomic #40
What is Zirconium?
Caesium - 1 electron
What is Xenon?
Ba
What is Barium?
[Rn]7s1
What is Francium?
What is positive?
Atomic #s 5, 14, 32, 33, 51, and 52
What are metalloids?
Atomic #79
What is Gold?
Molybdenum - 6 electrons
What is Krypton?
Atomic #38
What is Strontium?
[Kr]4d105s2
What is Cadmium?
The overall charge of an elemental atom or isotope
What is neutral?
Period 7, Groups 3-17
What are actinides?
Ag
What is Silver?