ATI TEAS 7 CHEMISTRY EXAM
QUESTUIONS AND ANSWERS
Where do electrons orbit?
Around the nucleus in shells
Do neutrons have an electrical charge?
No
Atoms of same element that has a different number of neutrons
Isotopes
How do you find atomic mass?
Protons + neutrons
Bonds formed when atoms share electrons to achieve stability
Covalent bonds
Example of covalent bonds
H2, H2O, O2
Do ionic bonds have a high or low electronegativity?
High
Do covalent bonds have a high or low electronegativity?
, Atoms that gained or lost protons and as a result have a charge that is positive or
negative
Ions
A chart that shows how other elements are related to one another
Periodic table of elements
What are the columns of the periodic table called?
Groups/families
What are the rows of the periodic table called?
Periods
What are the first two rows of the periodic table?
Alkali and alkaline earth metals (active metals)
What is the middle of the periodic table?
Reactive metals
What are the elements on the far right of the periodic table?
Noble/inactive gases
What do the groups on the periodic table represent?
How many valence electrons are found in the atom
Areas where electrons are likely found
Orbitals
Which orbital is spherical?
S orbitals
Maximum electrons in s orbital
QUESTUIONS AND ANSWERS
Where do electrons orbit?
Around the nucleus in shells
Do neutrons have an electrical charge?
No
Atoms of same element that has a different number of neutrons
Isotopes
How do you find atomic mass?
Protons + neutrons
Bonds formed when atoms share electrons to achieve stability
Covalent bonds
Example of covalent bonds
H2, H2O, O2
Do ionic bonds have a high or low electronegativity?
High
Do covalent bonds have a high or low electronegativity?
, Atoms that gained or lost protons and as a result have a charge that is positive or
negative
Ions
A chart that shows how other elements are related to one another
Periodic table of elements
What are the columns of the periodic table called?
Groups/families
What are the rows of the periodic table called?
Periods
What are the first two rows of the periodic table?
Alkali and alkaline earth metals (active metals)
What is the middle of the periodic table?
Reactive metals
What are the elements on the far right of the periodic table?
Noble/inactive gases
What do the groups on the periodic table represent?
How many valence electrons are found in the atom
Areas where electrons are likely found
Orbitals
Which orbital is spherical?
S orbitals
Maximum electrons in s orbital
