bellringer 2.1 biology Flashcards
1
Q
The particles that move around the nucleus of an atom are called___.
A
electrons
2
Q
The atomic number of a carbon atom is 6. How many neutrons does the isotope Carbon-12 have_____?
A
6
3
Q
three isotopes of carbon have the same chemical properties but differ in ____.
A
Atomic mass
4
Q
A chemical compound consists of two or more______.
A
elements
5
Q
Van der Waals forces are the result of_____ sharing of electrons.
A
unequal
6
Q
A covalent bond forms when electrons are_____between atoms.
A
shared
7
Q
Isotopes are created by a change in the number of____ in atoms.
A
neutrons
8
Q
Atoms are made of____,_____, and_____.
A
protons, neutrons, electrons
9
Q
The two main types of bonds are____ and____.
A
covalent and ionic
