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13 questions
The element hydrogen has three naturally occurring isotopes.
Which of the following describes the relationship of these isotopes?
Isotopes have (a) mass numbers, but (b) number of protons.
different
the same
The atomic number of yttrium is 39. The atomic mass of one of its isotopes is 89.
How many neutrons are in an atom of this isotope of yttrium?
Organize these options into the right isotopes
6 Protons in the Nucleus
6 Protons in the Nucleus
Organize these options into the right isotopes
8 Protons in the Nucleus
8 Protons in the Nucleus
8 Protons in the Nucleus
Organize these options into the right isotopes
1 Proton in the Nucleus
1 Proton in the Nucleus
1 Proton in the Nucleus
Use your understanding of Atomic Mass to complete the Table.
9
24
1
6
5
8
12
63
Atoms consist of negatively charged (a) that orbit the (b) . The nucleus consists of positively charged (c) and neutral (d) . Protons and neutrons are each made from three (e) .
electrons
nucleus
protons
neutrons
quarks
Match the following letters with their correct representation in atomic structure.
Letter representing the nucleus | B | ||
Letter representing an electron | A | ||
Letter representing a neutron | C | ||
Letter representing a proton | D |
What does the atomic number of an element represent?
The number of protons in the nucleus
The number of neutrons in the nucleus
The total number of protons and neutrons in the nucleus
The total number of protons and electrons in an atom
What is the ATOMIC MASS of this Atom?
What is the ATOMIC MASS of this Atom?
What is the ATOMIC NUMBER of this Atom?
What is the ATOMIC NUMBER of this Atom?
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