The number of protons in an atom of an element is its ___________ number.
What is atomic?
__________ is the basic building block of all matter.
What are atoms?
The number of protons in this element.
What is 5?
What is the Atomic Number of this atom?

7
how many electrons are in the first shell?
What is the charge of a proton?
What is the charge of a neutron?
What is the charge of an electron?
Proton: Positive
Neutron: Neutral
Electron: Negative
Define Isotopes
The same element with the same number of protons but different number of mass and neutrons.
The number of neutrons in this element.

What is 6?
How many Electrons are in this atom?

2
name 3 gases on the periodic table
oxygen, helium, neon, etc
Electrons in an atom move throughout the electron __________ surrounding the nucleus.
What is cloud?
three states of matter
what is a solid, liquid, and gas?
The atomic weight of this element.
What is 55.845
What is the Atomic Mass of this Atom?

14
What element on the periodic table is a liquid at room temperature?
What determines the identity of an element.
What is the atomic number?
A vertical column in the periodic table of the elements
What is a group or family?
The number of electrons in this element.
What is 79?
What is the Element Name of this (neutral) atom?

Oxygen
how many electrons are in the second shell?
What is 8?
The Atomic Model that introduced the theory of electron orbits.
What is the Bohr Model?
What is the Nucleus? What is protons and neutrons?
The number of neutrons in this element.

What is zero?
What is the Atomic Mass of this atom?

23
Draw a dot diagram of chlorine.
Answers may vary on the board.
A horizontal row in the periodic table of the elements
Periods
The outermost energy level of an atom where the valence electrons are located
What is a Valence Electrons?
How many neutrons does silver have?

What is :61
How many Protons, Neutrons, and Electrons are in Nitrogen?
Protons = 7
Electrons = 7
Neutrons = 7
Who were the 1st group of people to discover elements? Hint: they believed in 4 elements.
Who were the Greeks?