1
What is the symbol for carbon?
C
What is the symbol for magnesium?
Mg
What is the symbol for Sodium?
Na
What is the symbol for Potassium?
K
What is the symbol for Oxygen?
O
24
What is the Proton Number for Chlorine?
17
What is the relative atomic mass for Calcium?
40
What is the Proton number for H?
1
What is the Atomic Number for Nitrogen?
7
How many protons does an atom of Flourine has?
9
How many electrons does an atom of Neon has?
10
How many protons does an atom of Phosphorus has?
15
How many protons does an element of Helium has?
2
How many electrons does an atom of Aluminium has?
13
What is the relative charge for a neutron?
0
What is the relative charge for an electron?
-1
What is the relative charge for a proton?
+1
What is the relative mass of an electron?
0
What is the relative mass of a proton?
1
An atom has 13 protons and 14 neutrons. What is the mass number?
27
proton = 9
electron = 9
neutron = 10