Test - Atomic Structure Flashcards
1
Q
- The nucleus contains the ______.
- volume
- mass
A
Volume (NB pg 7,4)
2
Q
- The majority of the MASS of the atom is located in the __________ and the majority of the VOLUME of the atom is located in the ______________.
A
Nucleus, Electron Cloud ( NB pg 7,4)
3
Q
- A neutral atom may contain 8 protons
A
9 neutrons and 8 electrons (NB pg 7, 8)
4
Q
- An element with 5 protons, 6 neutrons, and 8 electrons has an atomic number of
A
5 ( NB pg 7, 8)
5
Q
- An atom is electrically neutral because
A
The numbers of protons and electrons are equal (NB pg 7, 8)
6
Q
- Each family in the periodic table has its own characteristic properties based on the number of
A
Valence electrons (NB pg 7, 13)
7
Q
24. Which of the following elements would be the best conductor of electricity A.iodine B.Silicon C. Argon D.Silver
A
D ( NB pg 7, 16)
8
Q
- The farther an electron is from the nucleus, the more______it has.
A
Energy (NB pg 7, 4)
9
Q
- Which particles determine the atomic number of an element?
A
Protons only (NB pg 7, 8)
10
Q
- In each period, how does the number of electrons in each kind of atom change from left to right between groups 1 and 2? Explain how you know.
A
The number of electrons increases by one in a period as it moves across the period. The atomic number also increases. (NB pg 7, 14)
11
Q
- An isotope of Carbon has 7 neutrons.
A. Write this isotopes notation in Nuclear Form.
B. Write this isotopes notation in Hyphen Form
A
A. (Exponent) 13 C
B. Carbon - 13
(NB pg 7, 16 )
12
Q
- Describe on similarity and one difference between the atoms you drew above. Include why each difference and similarity is expected, based on each element’s location on the periodic table.
A
- Same = the number of valence electrons
Difference = number of energy levels
(NB pg 7, 16)
