Multiple Choice
The elements lithium, sodium, and potassium
A) have the same mass number.
B) have the same number of neutrons.
C) are isotopes of each other.
D) are in the same group.
E) are in the same period of elements.
Correct Answer:

Verified
Correct Answer:
Verified
Q27: Write the electron arrangement for the atom
Q39: Select the correct symbol for the element.<br>-sodium<br>A)Sm<br>B)So<br>C)Na<br>D)No<br>E)Au
Q40: The number of dots in the electron
Q42: The mass number of an atom can
Q43: Identify the metalloid in the following list.<br>A)sulfur<br>B)copper<br>C)silver<br>D)fluorine<br>E)germanium
Q45: Semiconductors are located in the periodic table
Q46: The number of dots in the electron
Q47: The element in this list with chemical
Q48: How many valence electrons are in the
Q49: Chlorine has two naturally occurring isotopes. The