UNIT 1. Atomic models. Atomic structure. 3º ESO
When studying atoms, A, B, C and D, the following data of numbers of protons (p+), neutrons (no) and electrons (e- ) was obtained:
A
|
B
|
C
|
D
|
|
p+
|
11
|
11
|
12
|
13
|
no
|
12
|
12
|
12
|
14
|
e-
|
11
|
10
|
12
|
10
|
a) Which belong to the same element?
b) Which are electrically neutral?
c) Which has the greatest mass?
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