Elements
Subatomic particles of any element is composed by which charge?
Protons (+), Electrons (-), and Neutrons (no charge).
What do elements in the same column have?
Identical valance electron configurations
Form a formula with an alkali metal
Sample: KI, LiF, NaBr
Form a formula with iron (III) ion
Sample: FeCl3, Br₃Fe, Fe₂S₃
Form a formula with an atom in period 4
Sample: Ga2Se3, AsO, IGe
Atomic number of a typical Gold atom that holds 79 protons, 79 electrons, and 118 neutrons is?
The atomic number of a typical Gold atom is 79
How can elements in group one be so reactive?
All have 1 valence electron and they want to "get rid" of this one electron in order to gain a noble gas configuration
Form a formula with a Halogen
Sample: LiBr, MgCl2, RbF
Form a formula with (NH4)+1
Sample: (NH₄)₂SO₄
Form a formula with an atom in group 1
Sample: Fr2O, CsCl, ILi
True or False: The mass # of lithium can be determine by total # of neutrons and protons in the Nucleus?
True
Move from left to right on the periodic table, what occurs to the electronegativity in elements?
It increases
Form a formula with an atom in period 3
Sample: Si3N4, AlO, NaN3
Form a formula with P-3
Sample: Cs3P1, Ca3P2
Form a formula with aluminum ion
Sample: Al2O3
A plutonium atom has 94 protons, 94 electrons, and 150 neutrons. Its atomic mass is:
244
What similarity do elements have located in the same row?
Valence electrons in the same shell
Form a formula with an atom in group 2
Sample: CaCl5, BeI, BaP
Form a formula with three cations
Sample: BO, AlF, GAI
Form a formula silver(I) ion
Sample: AgI
What is the most abundant isotope of argon?
The most abundant isotope is 40Ar
How does the melting point work in the periodic table?
The topmost elements have large melting point because of their small atomic radii and so more energy is required to pull out its outermost electron.
Form a formula with oxide ion
Sample: MgO 4 , Na₂O, K 2 O
Form a formula with an alkaline earth metal
Sample: Ra3As2, SrCl, BaN
Form a formula with Cu+2
Sample: Cu(C2H3O3)+2