Test Atomic Structure Test Correction

Question 1

No. 3

All elements are composed of extremely small particles called

Answer 1

C. Atoms

I put —- A. Compound

Note page 3

Question 2

4. Each family in the periodic table has its own characteristic properties based on the number of ___________

Answer 2

Answer ——- B. Valence electrons

I put ——- c. Protons

Notes page 6

Question 3

No. 5 what is the greatest number of valence electrons an atom can have?

Answer 3

Answer —— c. 8

I put —— d. 12

Notes page 14

Question 4

No. 6 the atomic number of magnesium is 12. Therefore its nucleus must contain __________

Answer 4

Answer —- d. 12 protons and no electrons

I put —- b. 6 protons and 6 electrons

Notes page 14

Question 5

No. 8 an element with 5 protons 6 neutrons and 8 electrons has an atomic number of———

Answer 5

Answer ——— a. 5

I put ——— c. 8

Notes page 14

Question 6

No. 10 the farther an electron is from the nucleus, the more _____ it has.

Answer 6

Answer —— b. Energy

I put ——— a. Charge

Question 7

No. 22 an atom is electrically neutral because ________

Answer 7

Answer — c. The number of protons and electrons are equal

I put —— a. Neutrons balance the protons and electrons

Notes page 14

Question 8

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 8

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

Question 9

No. 31 which of the following elements would be the mot reactive

Answer 9

Answer ——— c. Silver

I put —— d. Argon

Notes page 16

Question 10

No. 32 which of the following elements would be the least reactive

Answer 10

Answer —— a. Iodine

I put ——— d. Argon

Notes page 16

Question 11

No. 33 with the exception of helium, group 18 elements usually have ______ valence electrons so they usually do not react with other elements

Answer 11

The answer ——— eight

I put 12

Notes page 15

Question 12

No 37. Arranged the elements in the periodic tube based on tonic number

Answer 12

Answer a. Henry Moseley

I put g. Dalton

Notes page 3

Question 13

No. 38 solid sphere model elements are atoms with different models

Answer 13

Answer. G. Dalton

I put c. Ernest Rutherford

Notes page 3

Question 14

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 14

Answer. H. Schrodinger and heisenburg

I put D. Neils Bohr

Notes page 4

Question 15

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 15

Answer c. Ernest rutherford

I put b. Jj Thompson

Notes page 3

Question 16

No 41 arranged the elements on the periodic table based on atomic mass

Answer 16

Answer. F dimitri Mendeleev

I put e Democritus

Notes page 3

Question 17

No 42 plum pudding model atom is positive sphere with negatively charged particles evenly embedded throughout

Answer 17

Answer b jj Thompson

I put h schrodinger and heisenburg

Question 18

No 43 electrons travel in fixed orbits around the nucleus of the atom

Answer 18

Answer d neils Bohr

I put f dimitri Mendeleev

Question 19

No 44 named the Tom based in the Greek word meaning indivisible

Answer 19

Answer e Democritus

I put. A. Henry Moseley

Question 20

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 20

Answer —- atoms electrons increase by one because protons increase by one

I put number of electrons change

Notes page 15-16

Question 21

No 47 which group contains elements with two valence electrons

Answer 21

Answer alkaline earth metals group 2

I put alkali metals

Notes page 16

Question 22

No 51 an isotope carbon has 7 neutrons

A. Write the isotopes notation in nuclear form
B. Write this isotopes notation in hyphen form

Answer 22

A answer 13c
B answer carbon -13

Note pages 13-16