Chemistry - Quiz 3: Golden years to Bohr model

(WRONG ANSWER, but close): Complete the chart. (Remember to enter a 0 if necessary.) Atomic Number: 19

(WRONG ANSWER, but close): 2 2 6 2 2 1 0 0 0

Give the orbital configuration of the following elements using the s, p, d, f type representation. (Answer format is: 1se2 = 1s 2 ) helium, nitrogen, silicon helium nitrogen silicon

1. Helium (He): - Helium has 2 electrons. - Orbital Configuration: 1s² 2. Nitrogen (N): - Nitrogen has 7 electrons. - Orbital Configuration: 1s² 2s² 2p³ 3. Silicon (Si): - Silicon has 14 electrons. - Orbital Configuration: 1s² 2s² 2p⁶ 3s² 3p²

Consider the two electron arrangements for neutral atoms A and B. What is the atomic number of A? A - 1s 2 , 2s 2 , 2p 6 , 3s 1B - 1s 2 , 2s 2 , 2p 6 , 5s 1

11

Consider the two electron arrangements for neutral atoms A and B. What is the atomic number of B? A - 1s 2 , 2s 2 , 2p 6 , 3s 1 B - 1s 2 , 2s 2 , 2p 6 , 5s 1

11

Complete the chart. (Remember to enter a 0 if necessary.) Atomic Number: 3

2 1 0 0 0 0 0 0 0

What is the maximum number of electrons found in any shell of the known elements?

32

What is the atomic number of the first element to start filling an f sub-level?

58

The maximum number of electrons in a p sub-level is:

6

Consider the two electron arrangements for neutral atoms A and B. Which atom is more stable? A - 1s 2 2s 2 2p 6 3s 1 B - 1s 2 2s 2 2p 6 5s 1

A

Consider the two electron arrangements for neutral atoms A and B. The outer electron of atom B has moved to a higher energy state. What could cause this difference? A - 1s 2 2s 2 2p 6 3s 1 B - 1s 2 2s 2 2p 6 5s 1

Atom B has absorbed energy, perhaps by heating.

Which scientist discovered the neutron?

Chadwick

Which statement applies to the electron at state 2?

It possesses greater energy than the ground state.

Consider the two electron arrangements for neutral atoms A and B. What is the difference between atom A and atom B? A - 1s 2 2s 2 2p 6 3s 1 B - 1s 2 2s 2 2p 6 5s 1

The outer electron of atom B has moved to a higher energy state.

What causes the lines in the spectrum for elements?

a quantum release of energy as electrons drop back to their ground state

Name the element that corresponds to the following electron configuration. 1s 2 , 2s 2 , 2p 1

boron

What does the p mean in 1s 2 2s 2 2p 6 3s 1 ?

one of the 4 sub-shells

The 3 in 4p 3 represents:

the number of electrons

A principal quantum number refers to:

the numbered energy levels starting from the nucleus outward

Consider the two electron arrangements for neutral atoms A and B. Are atoms A and B the same element? A - 1s 2 2s 2 2p 6 3s 1 B - 1s 2 2s 2 2p 6 5s 1

yes