Periodic Table
Taking away an electron from an atom gives it a ______________ charge.
What is positive?
Elements are represented by the letters you see on the periodic table called _________.
What are chemical symbols?
A positively charged ion is
What is cation?
Isotopes are atoms of the same element that have different numbers of
What are neutrons?
In a neutral atom, the number of electrons equals the number of ______________
The horizontal rows on the periodic table are called ______________.
What are periods?
A negatively charged ion is
What is anion?
Protons and neutrons are found within the ______________ of an atom.
What is nucleus?
Electrons orbit around the nucleus of an atom in an electron cloud and are located on ____________.
What are energy levels?
The elements that touch the “staircase” on the periodic table are ______________.
What are metalloids?
Aluminum with 10 electrons.
What is Al+3?
To find the number of neutrons in an element, you need to subtract the number of protons from the
What is atomic mass?