Atomic Structure
What are the three main subatomic particles found in an atom?
A: Proton, neutron, electron
What are the vertical columns on the periodic table called?
Groups or Families
What does the atomic number of an element tell you?
The number of protons
What word describes the smallest unit of an element?
Atom
I am the lightest metal and used in rechargeable batteries for phones and laptops.
Lithium
What part of an atom has a positive charge?
Proton
What element is found in Period 2, Group 16?
Oxygen
What two numbers are needed to calculate the number of neutrons in an atom? How do you do it?
Atomic mass minus atomic number
What is an atom called when it gains or loses electrons?
Ion
I am a gas found in fluorescent lights and I glow a bluish color when excited by electricity.
Argon
Where are electrons located in an atom?
In the electron cloud or energy levels around the nucleus
What is the name of the group that contains very reactive metals like sodium and potassium?
Alkali metals
"Hippies"
An element has 11 protons, 12 neutrons, and 11 electrons. Identify the element.
Sodium
What do you call atoms of the same element that have different numbers of neutrons?
I am a metal that protects other metals from rusting and am found in galvanized steel.
What particle determines the identity of an element?
The number of protons
Which group contains elements that do not react easily with other elements?
Noble Gases
"Snobs"
How do you find the charge of an atom?
What are the electrons in the outermost energy level of an atom called?
Valence Electrons
I am a poisonous, shiny metalloid used historically in making semiconductors and can be found in old pesticides.
Arsenic
If an atom has 8 protons, 8 neutrons, and 10 electrons, what is its overall charge?
Negative 2
(-2)
Elements in the same group often have the same number of what type of electron?
Valence electrons
An atom of Mercury (Hg) has an atomic mass of 200, atomic number of 80, and charge of -1.
How many protons, neutrons, and electrons does this atom have?
protons = 80
neutrons = 120
electrons = 81
What is the term for a pure substance made of only one type of atom?
Element
This metalloid is used in computer chips because it conducts electricity only under certain conditions.
Silicon