Grade 10 - Chemistry - Atomic Structure Basic
What is the nuclear charge of an iron atom (Fe)?
+26
What is the total change of the nucleus of a carbon atom?
+6
What is the total charge of the nucleus of a nitrogen atom?
+7
What is the charge of the nucleus in an atom of oxygen -17?
+8
A neutral atom contains 12 neutrons and 11 electrons. The number of protons in this atom is
11
What is the atomic number of an element that has six protons and eight neutrons?
14
A sample of matter must be copper if
Each atom in the sample has 29 protons
Every chlorine atoms has
an atomic number of 17
All phosphorus atoms have the same
atomic number
Which quantity represents the number of protons in an atom?
atomic number
According to the modern model of the atom, the nucleus of an atom is surrounded by one or more
electrons
Two atoms will always have the same atomic number if they have the same
number of protons
An atom is electrically neutral because the
the number of protons equals the number of electrons
Compared tot he charge of a proton, the charge of a electron has
the same magnitude and the opposite sign
Compared to a proton, an electron has
the same quantity of change and the opposite sign
What can be determined if only the atomic number of an atom is known?
the total number of protons and the total number of electrons in the atom.