stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Periodic Table & Radiation Flashcards | StudBud
Explore
/
Periodic Table & Radiation
Periodic Table & Radiation
30 terms
·
StudBud Administration
·
163 plays
Periodic properties, EM radiation calculations
Flashcards
30 cards
F
Practice quiz
P
Host live
L
Questions
30
Answers
1
Which of these is incorrect?
O-2
N+3
Cl-1
K+1
2
Which of these has the same ionic charge as carbon?
Nitrogen
Silicon
Oxygen
Boron
3
Which of these has an oxidation number of +3?
Pr
Sr
O
Al
4
How many meters are there in 490. nm?
4.90 x 109
4.90 x 10-9
4.90 x 10-7
4.90 x 107
5
Which of these is not a gas at room temperature?
Hydrogen
Oxygen
Argon
Arsenic
6
Calculate the energy of a photon with a frequency of 2.83 x 10
14
Hz.
1.88 x 1019 J
1.88 x 10-19 J
2.34 x 10-48 J
4.27 x 1047 J
7
What is the frequency of electromagnetic radiation with a wavelength of 575 nm?
1.92 x 1015 Hz
1.92 x 10-15 Hz
5.22 x 10-14 Hz
5.22 x 1014 Hz
8
Which of these has the same oxidation number as phosphorus?
Si
Pd
Ne
N
9
Which of these is a halogen?
Na
Cu
Ne
Cl
10
Which of these has an oxidation number of -1?
Alkali Metals
Alkaline Earth Metals
Halogens
Noble Gases
11
How did Mosely correct the errors in Mendeleev's periodic table?
By arranging according to isotope abundance
By arranging according to mass instead of atomic number
By arranging according the electron energy levels
By arranging by the number of protons instead of mass
12
Calculate the energy of a photon with a wavelength of 995 nm.
2.00 x 10-12 J
2.00 x 1019 J
4.50 x 10-19 J
2.00 x 10-19 J
13
Consider the relationship between frequency and wavelength. Which is true?
There is no relationship between frequency and wavelength.
A blue photon has a higher frequency than an orange photon.
A green photon has a higher wavelength than a yellow photon.
Frequency and Wavelength have a direct relationship.
14
How is energy related to wavelength?
Energy increases as wavelength decreases.
Energy increases as wavelength increases.
Energy decreases as wavelength decreases.
Energy is constant for all wavelengths.
15
Which of these is NOT diatomic?
P
Br
H
N
16
Due to gaps in his periodic table, Mendeleev was able to...
predict undiscovered elements and their properties
determine that there were other isotopes of the elements
determine that other planets existed
determine the number of protons in each element
17
Calculate the wavelength in nm of light that has a frequency of 3.95 x 10
14
Hz. (Hz = sec
-1
)
7.59 x 10-7nm
1.32 x 106 nm
1320 nm
759 nm
18
Which of these is a transition metal?
K
Mg
Cu
Kr
19
The primary difference between the modern periodic table and Mendeleev's periodic table is:
The modern table is arranged by atomic mass.
Elements in the modern table are not grouped by properties.
The two tables are the same except there are more elements
The modern table is arranged by atomic number.
20
The rows of the periodic table are called:
classes
periods
families
groups
21
Which of these has similar properties to magnesium?
Ca
Mn
Al
Na
22
Which of the following statements is TRUE?
The energy of light increases as its frequency decreases.
The energy of an atom is increased when light is emitted.
An excited atom can return to ground state by emitting light
An excited atom absorbs light when dropping to ground state.
23
An electron returns to ground state and releases a photon of green light. Which is true?
The energy released was lower than a red photon.
The electron had previously absorbed a green photon.
The photon has a wavelength of 700 nm.
Energy was absorbed as it returned to ground state.
24
When an electron moves from its ground state to an excited state,
energy is released
an electron is emitted
energy is absorbed
light must be emitted
25
Which of these is least likely to form a bond?
B
H
Ne
Mg
26
Which of these can exist naturally in an unbonded state?
H
Cl
Au
Na
27
Which of these is an alkaline earth metal?
Al
Rb
Sr
Cu
28
What is the oxidation number of the element oxygen?
-2
6
+2
8
29
Which of these has an oxidation number that varies?
Co
Ba
Ne
Se
30
What is the unit for energy?
Hz
Seconds
Meters
Joules
