Chemistry, 26.08.2019 16:30 jasmin5285
If xenon has an atomic number of 54 and a mass number of 108, how many neutrons does it have?
a. 54
b. 27
c. 100
d. 108
5. atoms that vary in the number of neutrons found in their nuclei are called
a. ions
b. neutrons
c. neutral atoms
d. isotopes
potassium has an atomic number of 19.
what is its electron configuration?
a. shells 1 and 2 are full, and shell 3 has nine electrons
b. shells 1, 2 and 3 are full and shell 4 has three electrons
c. shells 1, 2 and 3 are full and shell 4 has one electron
d. shells 1, 2 and 3 are full and no other electrons are present
which type of bond represents a weak chemical bond?
a. hydrogen bond
b. atomic bond
c. covalent bond
d. nonpolar covalent bond
Answers: 1
Chemistry, 22.06.2019 13:00
Adepositional also feature that forms where a stream enters a lake or an ocean is a
Answers: 2
If xenon has an atomic number of 54 and a mass number of 108, how many neutrons does it have?
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