Periodic Table 1
Periodic Table 2
Periodic Table 3
Periodic Table 4
Periodic Table 5
100
The electrons in the outer energy level
What are valence electrons?
100
A part of an atom with a negative charge
What is an electron?
100
The atomic number tells you
What is the number of protons (and electrons) an atom of an element has?
100
Atomic mass - Atomic number
What is the formula for finding the neutrons of an atom?
100
A subatomic particle with no charge.
What is a neutron?
200
The location of protons and neutrons.
What is inside the nucleus?
200
An atom with a completely full outer most (valence) energy level is this.
What is nonreactive or noble gases?
200
Tiny particles that make up all matter.
What are atoms?
200
Arsenic (As) has 33.
What are protons and electrons?
200
The location of electrons.
What is outside the nucleus in the shells?
300
Columns on a periodic table
What are groups?
300
The maximum number of electrons the 2nd orbital, or energy shell, can hold.
What is 8.
300
Rows on the periodic table
What are periods?
300
Arsenic (As) has 42.
What are neutrons?
300
Elements in the same group share this.
What are the same number of valence electrons
400
The maximum number of electrons the 1st electron energy shell can hold.
What is 2?
400
A part of an atom with a positive charge
What is a proton?
400
The majority of the elements on the periodic table are this.
What are metals?
400
How many valence electrons does Boron have?
3 valence electrons. (3 on outer shell)
400
Isotopes have the same number of ______ but different number of ________
Isotopes have the same number of protons (or electrons) but different number of neutrons
500
Are group 1 metals or gases?
What are metals?
500
The modern periodic table is organized according to this.
What are by increasing atomic number?
500
Elements in group 1 have only 1 valence electron and are considered this.
What are elements that are considered extremely reactive?
500
How many valence electrons does this Lewis dot model show?
5 valence electrons
500
Another name for group 8 (or group 0) elements
Noble gases or inert gases