Atomic Theory, Periodic Table, Bonding

Question 1

What is the result of an electron moving from a higher to lower energy level?

Accepted Answer

Photon is emitted and energy of atom decreases

Question 2

Based on the Lewis dot structure of the element below what would be the ion's oxidation number?

Accepted Answer

-2

Question 3

What element would X be?

Accepted Answer

Oxygen

Question 4

Which of the following would be calcium nitrate?

Accepted Answer

Ca(NO3)2

Question 5

What does Fluorine, Chlorine, Bromine, and Iodine all have in common?

Accepted Answer

they all have 7 outermost electrons

Question 6

What element would have the following quantum numbers for their last electron? 5,0,0,-1/2

Accepted Answer

Sr

Question 7

Which of the following scientists is incorrectly paired with their discovery?

Accepted Answer

Schrodinger = neutrons

Question 8

What would be the formula for a compound made of calcium and nitrogen?

Accepted Answer

Ca3N2

Question 9

Which of the following is correct regarding ionic compounds?

Accepted Answer

conductive in solution or molten

Question 10

Which of the following of metals is due to them have free moving delocalized electrons?

Accepted Answer

all of the answers

Question 11

F has an electronegativity of 4.0 and S a value of 2.4. What would Cl's value be?

Accepted Answer

3.5

Question 12

Which of the following is the electron configuration for sulfur?

Accepted Answer

1s22s22p63s23p4

Question 13

Which of the following would be the smallest atom?

Accepted Answer

Be

Question 14

Which of the following would be the correct electron structure for CH2O?

Accepted Answer

D

Question 15

Mendeleev's periodic table was based on...?

Accepted Answer

atomic mass

Questions 15