Periodic Table 1
The outer most electrons involved in chemical reactions are these.
What are valence electrons?
Group 13, Period 4
What is Gallium?
The atomic number tells you this.
What is the number of protons (and electrons) an atom of an element should have?
Group 16, Period 2
What is Oxygen?
The columns on the periodic table
What are groups and families?
These are shiny, good conductors, solids at room temperature, shiny, ductile, and malleable
What are the properties of metals?
This family has completely full outer most energy level (orbital level) is this.
What are Noble Gases?
If you were to compare the properties of Oxygen (O) and Bromine (Br), which one would have properties most similar to Fluorine (F)? and why
Bromine because they are in the same group
name any two elements that will have similar properties to that of helium
neon, argon. kryton, xeon, radon
These are the properties of metalloids.
What are many properties of both metals and nonmetals?
Group 17, period 4
What is Bromine?
Mendeleev organized the elements of his periodic table according to this.
What is increasing atomic mass?
Group 17 contains highly reactive nonmetals with seven valence electrons that tend to react violently with alkali metals and are more commonly known as this.
What are halogens?
Elements in groups 3-12 are called this
What are transition metals?
Elements in the same group share this.
What are the same number of valence electrons
The number of Protons is determined by this.
What is the atomic number?
Group 17 elements are known as this.
What are Halogens?
How are elements in the modern day periodic arranged
arranged by increasing atomic number
The rows on a periodic table are known as this.
What are periods?
all the elements on the periodic table are classified into three groups. what re these three groups
What are metals, metalloids, and nonmetals?
potassium is a very reactive metal that form bonds with other elements easily. What other elements would share the same properties with Potassium?
any element in group 1
The periodic table is divided into rows and columns called
What is rows called period and columns called groups
what does the elements Sodium and aluminum have in common?
they are in the same period which means they have three electron shells
Helium has ____________ valence electrons.
What are 2?
Elements are arranged in the periodic table based on various patterns. For example, elements found in the rows near the top ___?
A. have lower atomic numbers than elements in the rows near the bottom.
B. have higher atomic numbers than elements in the rows near the bottom.
C. have the same atomic numbers as the elements in the rows near the bottom.
D. have varying atomic numbers and there is no pattern observed from top to bottom
A. have lower atomic numbers than elements in the rows near the bottom.