Table of Elements
How many groups are there on the Periodic Table of Elements?
What is 18 groups
The smalles particle into which an element can be divided and still be the same substance is a?
What is a Atom
How many Protons does Au have?
What is 79 Protons?
The mass number minus the atomic number is equal to the number of?
What are neutrons
What is the valence?
What is the outermost energy level of electrons
On the Periodic Table, a horizontal row is called?
What is a period
What particles make up the nucleus of an Atom?
What are protons and nucleus
What is the Atomic # of Xenon?
What is 54
What is the name of the element with 12 neutrons?
What is magnesium
What on the Periodic Table of Elements tells you the amount of Valence electrons?
What are the groups
An element's properties can be predicted from its?
What is location on the Periodic Table of Elements
Electrons are particles that are located?
What are energy levels, orbitals, clouds around the nucleus.
What is the neutral particle called?
What is a neutron
What is the name of the element with zero neutrons?
What is Hydrogen
How many electrons in the first energy level, 2nd and third energy level?
What is 2, 8, 18.
Mendeleev arranged the elements on the Periodic Table by?
What is atomic mass
What is the charge of a Proton?
What is positive+
Where is the protons and neutrons found in an atom??
What is the nucleus
What is the name of the element that has 4 neutrons?
What is Lithium
How many valence electrons in Magnesium?
What are 2 valence electrons?
How are the squares of elements arranged?
What is atomic number, element symbol, element name and atomic mass.
What charge is an Electron?
What is negative e-?
Atom of an element with the sme number of protons but a different number of neutrons is?
What is an isotope
Strontium has how many neutrons?
What is 50 neutrons
How many energy levels are there for Magnesium?
What are three energy levels