Ch4 Atomic Structure Flashcards

1

The average atomic mass is determined by

counting protons and neutrons
relative abundance
adding all subatomic particles up
subtracting mass number from atomic mass

2

Number of protons in carbon atom?

7
12.01
12
6

3

Number of protons in iron?

59
30
26
82

4

Number of neutrons in iron?

30
82
26
56

5

The STM and AFM work by

force measuring mass
needle tracing shape of atoms
oil drop determining charge
electricity determining charge

6

The number of protons in an atom equals

none of these
mass - atomic number
the number of electrons
the number of neutrons

7

The engineering of functional systems at the molecular scale is

Microscopy
Pulse Generation
Nanotechnology
Transmutation

8

Accuracy is measured with

reliability range
significant figures
none of these
percent error

9

Rutherford changed the model of the atom to have

electron cloud
concentric rings
negative particle called electrons
mostly empty space

10

Atoms of an element with different number of neutrons.

Gamma Ray
Isotope
Nucleide
Metal

11

Atoms have a net charge of

1
0
-1
2

12

Type of radiation that emits a helium nuclei.

Alpha
None of these
Gamma
Beta

13

Number of electron in iron?

26
55
30
56

14

The central region of the modern model of the atom.

electron cloud
nucleus
concentric rings
nucleiod region

15

Number of neutrons in carbon atom?

6
12.01
18
12

16

Number of electrons in carbon?

12.01
7
12
6

17

Type of microscope using thin section and electrons.

Scanning Electron Microscope
Oil Immersion
Light Microscope
Transmission Electron Microscope

Ch4 Atomic Structure

Questions 17

Ch4 Atomic Structure

Questions 17