Periodic Table 1
Atomic Structure
Subatomic Particles
Periodic Table 2
Periodic Table/Atomic Structure
100
Atomic mass - Atomic number
What is the formula for finding the neutrons of an atom?
100
We will create these models of each element to show the distribution of electrons in the energy levels. What are these diagrams called. (Hint: they are named after Niels BOHR the physicist who developed it)
What are Bohr diagrams.
100
A subatomic particle with no charge.
What is a neutron?
100
Arsenic (As) has 42.
What are neutrons?
100
The period number tells how many energy levels there are for placement of electrons. How many energy levels does Potassium (K) have?
What is 4?
200
Rows on the periodic table.
What are periods?
200
An atom with a completely full outer most (valence) energy level is this. ( They are in Group 18)
What is nonreactive or noble gases?
200
A part of an atom with a negative charge
What is an electron?
200
The majority of the elements on the periodic table are metals, nonmetals, or metalloids?
What are metals?
200
Tiny particles that make up all matter.
What are atoms?
300
Columns on a periodic table
What are groups?
300
What does the atomic number tell us about an element?
How many protons (and electrons) it has.
300
A part of an atom with a positive charge
What is a proton?
300
The modern periodic table is organized according to this.
What are by increasing atomic number?
300
Elements in the same group share the same number of valence electrons. How many valence electrons do elements in Group 1 (Alkali Metals) have?
1!
400
The atomic number tells you
What is the number of protons (and electrons) an atom of an element has?
400
The electrons in the outermost energy level
What are valence electrons?
400
The location of protons and neutrons.
What is inside the nucleus?
400
Arsenic (As) has 33.
What are protons and electrons?
400
The three classes of elements are these.
What are metals, metalloids, and nonmetals?
500
Found in a zigzag line on the periodic table.
What are metalloids?
500
This is a Lewis dot model. It shows an element's number of valence electrons. This number also corresponds to the element's Group. What is the element, and how many valence electrons does it have?
Nitrogen - 5 valence electrons
500
The location of electrons.
What is outside the nucleus, energy levels, energy shell, electron cloud?
500
Elements in group 1 have only 1 valence electron and are considered this.
What are elements that are considered extremely reactive?
500
Located on the zigzag line.
What are metalloids?