The mass number of an atom can be calculated from
A) the number of neutrons.
B) the number of electrons.
C) the number of electrons plus protons.
D) the number of protons plus neutrons.
E) the number of protons.
Correct Answer:
Verified
Q20: The Group 8A (18)elements
A)melt at high temperatures.
B)are
Q22: Which of the following gives the correct
Q23: Consider a neutral atom with 30 protons
Q24: In an atom, the nucleus contains
A)only protons.
B)only
Q26: Semiconductors are located in the periodic table
Q27: The number of neutrons in an atom
Q28: The smallest particle of an element that
Q29: Identify the noble gas in the following
Q30: The atomic number of an atom is
Q37: Consider a neutral atom with 30 protons
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