Vocabulary 1
The area surrounding the nucleus of an atom where the electrons are found
What is the Electron Cloud?
A pure substance composed of the same type of atom throughout
What is an Element?
When moving across a row in the Periodic Table, this increases...
What is the Atomic Mass?
Going down a column in the periodic table, this increases
What is the atomic mass?
Between Lithium, Beryllium, Sodium, and Magnesium, these two elements have the same number of valence electrons...
What are Lithium and Sodium?
Electrons in the outermost energy level of an atom that influence how an element will react with other substances
What are Valence Electrons?
A table in which all the known elements are arranged by properties and are represented by chemical symbols
What is the Periodic Table of Elements?
When moving down a column in the Periodic Table, this stays the same...
What is the number of valence electrons?
In these Periods, you will find the metalloids...
What are Groups 13, 14, 15, 16 and 17?
When moving down a column in the periodic table, the following increases...
- number of valence electrons
- melting point of the element
- possible number of bonds formed
- metallic character of the element
What is the metallic character of the element?
Elements that are typically not shiny, not malleable, and are poor conductors of heat and electricity
What are Nonmetals?
Elements that are typically solid, shiny, malleable and good conductors of heat and electricity
What are metals?
These types of elements are usually found in the middle of the periodic table...
What are metals?
When moving across a row in the periodic table, these two things increase...
What are protons and electrons?
Between Nitrogen, Oxygen, Flourine, Phosphorus, Sulfur, Chlorine, Arsenic, Selenium, and Bromine, this element has similar properties to Sulfur...
What is Oxygen?
Nonreactive nonmetals in Group 19 of the periodic table
What are Noble Gases?
Elements that have properties of both metals and nonmetals
What are Metalloids?
Between Phosphorus, Sulfur, Chlorine, Arsenic, Selenium, and Bromine, this element has a chemical reactivity similar to Bromine...
What is Chlorine?
Of the options given, these elements have four valence electrons:
- B, Si, As, Te
- C, Si, Ge, Sn
- O, S, Se, Te
- Ga, Ge, As, Se
What is Carbon, Silicon, Germanium, and Tin?
As you move left to right from Group 2B to 8A, what character decreases in the periodic table of elements?
What is metallic character?
The columns on the periodic table that arrange elements by the number of electrons that are in the outermost shell
What are Groups?
The rows in a periodic table that classify the elements by the number of electron shells
What are Periods?
When presented with the following elements, these 4 have three valence electrons
- B, C, N, O
- B, Al, Ga, In
- N, P, As, Sb
- O, S, Se, Te
What are Boron, Aluminum, Gallium, Indium?
Between Boron, Carbon, Aluminum, and Silicon, these two have the same number of valence electrons...
What is Boron and Aluminum?
Nonmetals are found in the following groups...
What is 1A and 4A to 8A?