Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
What is matter made up of? |
Matter is made up of molecules and atoms. Meaning made up of positive electricity protons and negative and neutral. |
|
|
Describe the kinetic theory of matter, such as how particles move. |
No energy can be destroyed or composed into smaller particles. The particles are in constant motion and are divides into 3 different atoms. Like the neutrons and protons are in the nucleus and the electrons are circling around them. |
|
|
Describe the structure of an atom. What is the charge of each subatomic particle? Where are they located? |
An atom is a smallest particle in the whole universe. A proton has a positive charge and a neutron has a no charge and a electron has a negative charge. The Proton and Neutron are in the middle and the electrons are circling them. |
|
|
How do you calculate the number of subatomic particles for an element? |
Proton and Electron: The Atomic Number And the Neutrons: Atomic Mass - Atomic Number = Number of Neutrons |
|
|
What’s the difference between pure substances (elements and compounds) and mixtures? |
A pure substance are made of one type of atom or molecule. And a mixture is when elements are mixed physically but not chemically. |
|
|
What is the difference between elements and compounds? Give 2 examples of everyday compounds. |
Elements are pure substances that cannot be broken down but a compound is when two or more elements have been chemically combined. Salt and Water. |
|
|
Why is it safe to eat table salt, if sodium and chlorine are poisonous? |
Since they have CHEMICALLY combined they are no longer piousness. |
|
|
Describe the difference between molecules of an element and molecules of compound? |
Molecules of element is when two or more elements that are the same combined but, molecules of an compound is vice versa. |
|
|
How and why are elements grouped on the periodic table? Be sure to include at least 3 trends or patterns. |
Because they are in the same column called groups which sometimes means that they are chemically have the same reactions. |
|
|
What is the similarity and difference between periods and groups? |
The similarity is that they are putting the elements into a group on a periodic table and the differences is that groups go horizontal and periods go vertically. |
|
|
How do you read a chemical formula (think about coefficients and subscripts)? How do you determine the number of elements in a chemical compound? |
? I need help with that |
|
|
What is the difference between chemical and physical properties of matter? Give two examples of each (Hint: Think about your superhero!). |
? I need help with that |
|
|
Describe how the modern periodic table is organised (in detail). Explain how Mendeleev created his table. |
The periodic table is designed into periods and groups and was as well as the how the atomic number increases. |
|
|
Describe the difference between the properties of metals and nonmetals. |
The properties of metals is that they are really good conductors and have a high melting point. But, nonmetals gain electrons easily but are very poor conducters. |
|
|
Be able to use the periodic table to identify elements. |
This I can do it. |
