Ch 1: Structure and Bonding Flashcards
1
Q
The nucleus contains most of the ____ of the atom, while the electron cloud comprises most of the ______ of the atom.
A
mass
volume
p. 8
2
Q
What are isotopes?
A
Two atoms of the same element having a different number of neutrons (and therefore, different mass numbers).
p. 8
3
Q
The most common isotope of hydrogen has how many protons and how many neutrons in the nucleus?
A
1 proton
0 neutrons
p. 8
4
Q
Which isotope of hydrogen has 1 proton and 1 neutron?
A
deuterium (symbolized as āDā)
p. 8
5
Q
Elements in the same row (period) are similar in ____.
Elements in the same column (group) have similar ________ and _______ properties.
A
size
electronic and chemical
p. 9
