Vocab
building blocks of atoms
what is matter
Example of a Physical change
What is
Odor Texture
Taste Color
Hardness Temperature
(or others)
What is the periodic table
An organized arrangement of elements according to their atomic number
Neutrons have ______ charge
A) positive
B) No
C) high
What is B no charge
Atoms are everywhere
True
Has a positive charge
What is a proton
What is a chemical change?
What is when a substance interacts with another substance.
(Chemical Changed)
where do you find the atomic number on the periodic table
What is upper right corner
The nucleus includes......
A)Electrons and protons
B)only protons
C) Protons and neutrons
What is C Protons and neutrons
Na + Cl make salt water
True
Has no negative charge
What is an electron
What is a compound
What is two or more elements bonded together by the same ratio of elements in each part
How do you find the number of protons
The number of protons in the atom is equal to the atomic number
Where is are the electrons located
A) In the nucleus
B) Outside
C) Nowhere
What is B outside
Compounds have only one different types of atoms
False
Ion
an atom that becomes electrically charged by gaining or losing an electron
Example of a compound
What is H2O + NaCL
Salt water
How to find neutrons on periodic table
What is by subtracting the atomic number by the mass
A mixture is..
A) when two things are mixed together
B)two or more things physically intermingled
C) thats not a thing
What is B
Helium has 4 protons
False
Covalent bond
A bond formed when two atoms share electrons
Analogy related to what we are learning about
Ex; H and 2o are to Water
What is element on the periodic table
Ex; Sodium ( Na)
What area is sodium found on the periodic table?
A)Metalloids
B) thats not a thing
C)Alkali Metals
what is C
Energy is always involved in a chemical or physical change
True