Test - Atomic Structure Flashcards
1
Q
- Substances that cannot be broken down chemically into other substances are
A
Elements
NB pg 7
2
Q
- Each family in the periodic table has its own characteristics properties based on the number of
A
Valence electrons
NB pg 7
3
Q
- The atomic number of magnesium is 12 therefore its nucleus must contain
A
12 protons and no electrons
NB pg 7
4
Q
- The farther an electron is from the nucleus, the more ——- it has
A
Energy
NB pg 7
5
Q
- Which words below is represented by the word “period” on the periodic table
A
Energy level
NB pg 7
6
Q
- An atom is electrically neutral because
A
The numbers of protons and electrons are equal
NB pg 7
7
Q
- True/false
Are rare earth elements in the first column on the left
A
False
NB pg 7
8
Q
- Who arranged the elements on the periodic table based on atomic number
A
Henry Mosley
NB pg 7
9
Q
- Who said electrons travel in fixed orbits around the nucleus of the atom
A
Niels Bohr
NB pg 7
