Periodic Table
The number of electrons in the first energy level
2 electrons
The number of dot/s around a Sodium atom?
one
How will you represent a sodium ion?
Na+
What type of bond happens between two nonmetals?
covalent bond
A way of representing a chemical compound composing of symbols and the number of atoms of elements.
chemical formula
The group that has two valence electrons
Group 2
The number of dots around a Strontium atom
2
How will you represent a chlorine ion?
Cl-
the overall charge of a particle that is covalently bonded
neutral or zero charge
The chemical formula for dicarbon tetrahydride
C2H4
The group that has a full outer shell or eight valence electrons
Noble gases
The number of dots around a silicon atom
4
The attraction between a positive ion and a negative ion
Ionic bond
On which part of the periodic table are the elements comprising a covalent bond located?
Right side of the zigzag line
What is the chemical name of H2O?
dihydrogen monoxide
the number of electrons in bromine's outer shell
7
the number of dots around a Helium atom
2
A pure substance containing two or more elements
Compound
What is formed when two atoms share two pairs of electrons?
double bond
What is the chemical name of FeO?
iron (II) oxide
or ferrous oxide
What principle states that electrons fill atomic orbitals of the lowest available energy levels before occupying higher levels?
Aufbau principle
Give one element which would have 5 dots in its last energy level
nitrogen, phosphorus, arsenic, antimony, or bismuth.
What would be the overall charge of an ionic compound?
neutral or zero charge
The number of bond/s between 2 nitrogen atoms.
triple bond
What is the chemical name of (NH4)2SO4?
ammonium sulfate