types of bonds
Valence electrons
Periodic table
chemical compounds
Misc
100
this type of bond is between a metal and a nonmetal
what is an ionic bond
100
where are valence electrons located?
outside of the nucleus OR inside the electron cloud
100
the columns of the periodic table are called
groups
100
what would be the chemical formula between sodium (Na) and Bromine (Br)?
NaBr
100
How many elements are on the periodic table
118
200
what type of bond does CO2 form?
what is a covalent bond?
200
how many valence electrons does bromine have
7
200
how is the periodic table arranged?
by atomic number/protons
200
What is the chemical formula for Beryllium (Be) and Sulfur (S)?
BeS
200
Chemical formula of Gold
Au
300
this type of bond is formed between a nonmetal and a nonmetal
what is covalent
300
How many valence electrons does phosphorous have?
what is 5?
300
what type of element will not conduct electricity
what are nonmetals
300
What is the chemical formula for sodium (Na) and oxygen (O)?
Na2O
300
if an element has 58 protons, 62 neutrons, and 56 electrons, what would its charge be?
-2 anion
400
would MgO have a very high melting point or a low melting point?
what is a high melting point?
400
how many valence electrons can an atom hold on its outer most energy level?
8
400
this type of element can act both like a metal and a nonmetal
metalloids
400
what is the chemical formula for Aluminum (Al) and Chlorine (Cl)?
AlCl3
400
true or false? energy can be created and destroyed
false
500
Wyatt conducts an experiment. He dissolves C12H22O11 in water and then creates a circuit attached to a light bulb and a powersource. will the light turn on?
no
500
will an atom with 8 valence electrons be more reactive than an atom with 2 valence electrons?
no, 8 valence electrons = balanced
500
who created the modern periodic table?
Dmitri Mendeleev
500
What is the chemical formula between Magnesiusm (Mg) and Nitrogen (N)?
Mg3N2
500
why can't you trust an atom?
because they make up everything!