What Am I?
Subatomic atom has a positive charge.
proton
The two parts of the atom.
nucleus and electron cloud/shell
This group on the periodic table doesn't want to react with any other substances. .......
the Noble Gases (group 18)
how many number of periods in the Periodic Table.
seven
My symbol is O and my atomic mass is 16.
oxygen
I tell the number of protons contained inside an atom of an element.
atomic number / proton number
All of the mass of an atom is concentrated here.
the nucleus
This is the lightest element on the periodic table
Hydrogen
Rows in the Periodic Table are called this. (horizontal)
periods.
I have 16 electrons whizzing through my electron cloud.
sulfur
It takes 2000 of me to equal the mass of either of my subatomic partners.
an electron
We locate in the nucleus of an atom.
protons and neutrons
the name of an electron of an atom located in the outermost shell of the atom, that can be transferred to or shared with another atom.
Valence Electron
There are 18 of these in the Periodic Table.
groups
With an atomic mass of 39 and in group 1, what element am I?
potassium (K)
Atoms with the same number of protons, but different number of neutrons.
isotopes
The two particles that are always found in the same number.
protons and electrons.
This is created when an atom gains or loses an electron to another atom
an Ion
vertical line in periodic table shows .......
group of element
This bunch of elements separates the metals from the non-metals
metalloids
What is the center part of an atom named?
a nucleus of atom
The smallest subatomic particle, but its cloud accounts for the volume of an atom.
electron
This is the amount of electrons that can be on the first orbital of an atom
2 electrons
This is the unit used to measure the mass of an atom
atomic mass unit (amu)
Elements on the periodic table are separated by the number of these in the nucleus
protons