How does an atom in one element differ from another
what is the in the number of protons.
An element is
what is a form of matter made up of one type of atom.
Look at the board and tell me what is the lables on the periodic table of elements....(look at the board).
What is....
the atomic number, chemical symbol, element name, and atomic weight/mass.
How do you count elements in a compound?
What is counting the capital letters
What are the main elements of Earth
what is....oxygen, hydrogen, and nitrogen
the 3 subatomic particles that make up an atom is called
what is protons, neutrons and electrons
A compound is
what is two or more atoms of different elements
How can you tell the number of protons and electrons on the periodic table
what is look at the element's atomic number.
How do you know how many atoms you have in the compound
What is counting the subscripts (little numbers)
percentages of oxygen in Living Organisms
what is 65%
The name of the model we use to draw atoms
what is The Bohr Model
An atom is
what is the smallest particle of matter
what are the elements in the compound....
NaHCO3
What is.....
NA- Sodium
H-Hydrogen
C-Carbon
O- Oxygen
How many elements are there in this compound....
NaH2CO3
What type of bond is this.....
H2O
what is a covalent bond
the charges of the subatomic particle
what is....
protons-positive
neutrons- neutral
electrons-negative
An Ionic Bond is
What is a bond that forms between non-metal and metal elements.
What is a bond that steals/transfer electrons.
What is the atomic weight for Br?
What is 80
How many atoms are in the following compound......
NaCl
what is 2
What element makes up most of Earth's atmosphere?
What is Nitrogen
draw the atom for Lithium
What is....(look at the board)
A Covalent Bond is
What is a bond that is between a non-metal and non-metal elements.
What is a bond that shares electrons.
Which 2 elements have 14 neutrons?
what is....
silicone and aluminum
BrH2CO3
What is
Elements- 4
Atoms- 7
What bond is showing....
KBrB2
what is an ionic bond