1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
WINSTONCH [101]
3 years ago
5

A. What is a period on the periodic table?

Chemistry
2 answers:
malfutka [58]3 years ago
7 0

Answer:

In chemical bonding: Arrangement of the elements. The horizontal rows of the periodic table are called periods. Each period corresponds to the successive occupation of the orbitals in a valence shell of the atom, with the long periods corresponding to the occupation of the orbitals of a d subshell.

Explanation:

krek1111 [17]3 years ago
4 0
A period in a periodic table are the atomic numbers that increase from left to right..The periods are numbered from 1 to 7 on the left-handed side of the table.
You might be interested in
The city council of a small town wanted to add fluoride to their water so that all the residents would have healthier teeth. The
azamat

Answer:NaF is ionic. NF3 is covalent. SiF4 is ionic. CaF2 is Ionic and  NH4F is also ionic. Ionic compounds transfer electrons whereas covalent compounds share electrons hence the word "co". Also, ionic compounds are formed with metal and nonmetal. Where a covalent is with 2 nonmetals. Only ionic compounds would produce fluoride in water because ionic compounds can dissolve in water and covalent compounds cant.

3 0
3 years ago
The low-resolution mass spectrum of an unknown analgesic X had a molecular ion of 151. Possible molecular formulas include C7H5N
garik1379 [7]

Answer:

The molecular formula of X is C8H9NO2

Explanation:

Step 1: Data given

exact mass of 151.0640

Molar mass of C = 12 g/mol

Molar mass of H = 1.00783 g/mol

Molar mass of O = 15.9949 g/mol

Molar mass of N = 14.0031 g/mol

Step 2: Calculate molar mass of C7H5NO3

7*12 + 5*1.00783 + 14.0031 + 3*15.9949 = 151.02695 g/mol

Step 3: Calculate molar mass of C8H9NO2

8*12 + 9*1.00783 + 14.0031 + 2*15.9949 = 151.06337 g/mol

Step 4: Calculate molar mass of C10H17N

10*12 + 17*1.00783 + 14.0031 = 151.13621 g/mol

The molecular formula of X is C8H9NO2

3 0
3 years ago
What is the wavelength of infrared radiation with a frequency of 3.85 x 10^12 Hz?
ELEN [110]

Answer:

Wavelenght is 7,79x10⁻⁵ m

Explanation:

The equation that connects wavelentgh (λ) and frequency (ν) is:

λ=c/ν

Where c is speed of light (3x10⁸ m/sec) and λ is expressed in lenght´s units and ν is expressed in "time⁻¹ " units (for example, sec⁻¹)

According to the details, if we just replace the given value of frequency, we just obtaing wavelenght data:

λ= (3x10⁸ m/sec)/(3,85x10¹² sec⁻¹) = 7,79x10⁻⁵ m

3 0
3 years ago
Which is the most likely to be reduced?
tigry1 [53]

Answer:

Fe3+

Explanation:

6 0
3 years ago
Read 2 more answers
A massless length of twine can withstand a maximum tension of 490 N. The twine is used to spin a 28-kg ball in horizontal circul
vampirchik [111]

Answer:

5.6 m/s

Explanation:

8 0
2 years ago
Other questions:
  • - prediction
    7·1 answer
  • How plastic polymer types of compositions, surface hydrophobicity, crystallinity, porosity, size, shapes, aging or degree of wea
    10·1 answer
  • A group of students want to see how temperature affects the time spilled water to dry up what will be independent and dependent
    12·1 answer
  • Match the standard reduction potentials for each half reaction and the electric potential for the voltaic cell.
    7·1 answer
  • Explain where the weight of an atom is found what is responsible for that weight and why
    14·1 answer
  • The center part of an atom is called the
    10·1 answer
  • What is the Molar Mass of Cs2SO3?​
    6·1 answer
  • If 100% is not passed from one trophic level to the next, where does this energy go?
    7·2 answers
  • What is SO2 shape name?
    5·1 answer
  • How many atoms of carbon are present in 10 grams of coke?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!