Test Atomic Structure Test Correction Flashcards
No. 3
All elements are composed of extremely small particles called
C. Atoms
I put —- A. Compound
Note page 3
- Each family in the periodic table has its own characteristic properties based on the number of ___________
Answer ——- B. Valence electrons
I put ——- c. Protons
Notes page 6
No. 5 what is the greatest number of valence electrons an atom can have?
Answer —— c. 8
I put —— d. 12
Notes page 14
No. 6 the atomic number of magnesium is 12. Therefore its nucleus must contain __________
Answer —- d. 12 protons and no electrons
I put —- b. 6 protons and 6 electrons
Notes page 14
No. 8 an element with 5 protons 6 neutrons and 8 electrons has an atomic number of———
Answer ——— a. 5
I put ——— c. 8
Notes page 14
No. 10 the farther an electron is from the nucleus, the more _____ it has.
Answer —— b. Energy
I put ——— a. Charge
No. 22 an atom is electrically neutral because ________
Answer — c. The number of protons and electrons are equal
I put —— a. Neutrons balance the protons and electrons
Notes page 14
No. 25 when looking at halogens on the periodic table how does the number of valence electrons change as the energy level is increased
Answer ——- a. The total number of valence electrons decreases by 1 with each energy level
I put c. The total number of valence electrons increases by 1 with each energy level
Notes page 16
No. 31 which of the following elements would be the mot reactive
Answer ——— c. Silver
I put —— d. Argon
Notes page 16
No. 32 which of the following elements would be the least reactive
Answer —— a. Iodine
I put ——— d. Argon
Notes page 16
No. 33 with the exception of helium, group 18 elements usually have ______ valence electrons so they usually do not react with other elements
The answer ——— eight
I put 12
Notes page 15
No 37. Arranged the elements in the periodic tube based on tonic number
Answer a. Henry Moseley
I put g. Dalton
Notes page 3
No. 38 solid sphere model elements are atoms with different models
Answer. G. Dalton
I put c. Ernest Rutherford
Notes page 3
No 39. Electron cloud model surrounding the nucleus is an electron cloud Mae of shells electron do not however travel in a fixed orbit
Answer. H. Schrodinger and heisenburg
I put D. Neils Bohr
Notes page 4
No 40 nuclear model god foil expirement allowed him to discover that the nucleus was the positively charged center of the atom surround by negatively charged electron
Answer c. Ernest rutherford
I put b. Jj Thompson
Notes page 3
No 41 arranged the elements on the periodic table based on atomic mass
Answer. F dimitri Mendeleev
I put e Democritus
Notes page 3
No 42 plum pudding model atom is positive sphere with negatively charged particles evenly embedded throughout
Answer b jj Thompson
I put h schrodinger and heisenburg
No 43 electrons travel in fixed orbits around the nucleus of the atom
Answer d neils Bohr
I put f dimitri Mendeleev
No 44 named the Tom based in the Greek word meaning indivisible
Answer e Democritus
I put. A. Henry Moseley
No 46. 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
Answer —- atoms electrons increase by one because protons increase by one
I put number of electrons change
Notes page 15-16
No 47 which group contains elements with two valence electrons
Answer alkaline earth metals group 2
I put alkali metals
Notes page 16
No 51 an isotope carbon has 7 neutrons
A. Write the isotopes notation in nuclear form
B. Write this isotopes notation in hyphen form
A answer 13c
B answer carbon -13
Note pages 13-16
