1
Q
what is the cluster of protons/neutrons in the center of an atom?
A
the nucleus
2
Q
where is a proton located?
A
in the nucleus
3
Q
where is an electron located?
A
in the energy levels around the nucleus
4
Q
what is an energy level also known as?
A
shell/ orbit
5
Q
where is a neutron located?
A
in the nucleus
6
Q
what is the smallest part of an element?
A
an atom
7
Q
what are atoms made of?
A
protons, neutrons, electrons
8
Q
is a proton negative or positive?
A
positive
9
Q
is a neutron negative or positive?
A
neither
10
Q
is an electron negative or positive?
A
negative
11
Q
does an atom have electric charge?
A
no, it is neutral
12
Q
why is an atom neutral?
A
the number of protons (positive) must equal the number of electrons (negative)
9 science-- chemistry
flashcards
Decks in class (13)
# Cards
-
the particle theory of matter14
-
classification of matter16
-
physical properties43
-
chemical properties16
-
density, volume, mass3
-
atomic theory29
-
atomic structure12
-
periodic table15
-
isotopes3
-
classification of elements on the periodic table29
-
ions and ionic compounds15
-
molecules and molecular compounds8
-
modelling compounds4
