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
Gemiola [76]
3 years ago
10

1. Define a Family.

Chemistry
1 answer:
Nataliya [291]3 years ago
4 0

Answer:

  1. a family is a group consisting of 2 parents and their children living together in a union.

or all desendants of a common ancestor

2. A period is a name given to the horizontal row of the periodic table.

3.

a.mg

b.k

c.Fe

d.cu

e.Al

4.

a.Carbon

b.Chlorine

c.Gold

d.strontium

5.

a.period 1

b.period 4

c.period 5

d.period 5

6.

a.group 6

b.group 2

c.group 7

d.group 8 belong ti 1st transitional elements.

7.

a.F

b.Na

c.Ar

d.V

e.I

You might be interested in
Which picture shows the correct flow of electrical current
Elina [12.6K]
The answer is c because it is going to the light bulb

6 0
3 years ago
Read 2 more answers
Classify these molecules as polar or nonpolar. Drag each item to the appropriate bin.
mylen [45]

Answer:

This queston does not provides the molecules that are needed to be checked in order to classify them as polar or non-polar.

Explanation:

8 0
3 years ago
Type in the correct values to correctly represent the valence electron configuration of magnesium: AsB A = B =
Alexxandr [17]
The correct answer would be,
A= 3 
B=2
5 0
3 years ago
Read 2 more answers
Bob and Ada are camping and have sweet potatoes wrapped in foil to eat. Ada put her sweet potato in the bonfire for a while, but
Ahat [919]

Answer: one of the sweet potatoes atoms are moving really fast and the other sweet potatoes atoms isn't  moving.

8 0
3 years ago
The mass of a radioactive substance follows a continuous exponential decay model, with a decay rate parameter of 8.1% per day. f
Elanso [62]
The general equation for radioactive decay is;
N = N₀e^(-λt)
x - decay constant (λ) - rate of decay 
t-  time 
N - amount remaining after t days , since we are calculating the half life, amount of time it takes for the substance to to be half its original value, its N₀/2
N₀ - amount initially present 
substituting the values 
N₀/2 = N₀e^(-0.081t)
0.5 = e^(-0.081t)
ln (0.5) = -0.081t
-0.693 = -0.081t
t = 0.693 / 0.081 
  = 8.55
half life of substance is 8.55 days 
5 0
3 years ago
Other questions:
  • Is Gatorade a mixture ?<br><br><br> True <br><br> False
    6·2 answers
  • what is a wavelength of radio wave that travels at the speed of light 3.0 x 10^8 m/s and has frequency of 200 megahertz (200 mil
    14·1 answer
  • Major product of free radical of chlorination of propene
    5·1 answer
  • Find the mass of sucrose (molecular mass=342) required to be dissolved per 600cm² solution to prepare a semi molar solution.
    13·1 answer
  • What is 65x2? .....talk too meeee!! lm.ao I’m hella bored:)
    14·2 answers
  • How many atoms of hydrogen are there in HCOOH2?
    7·1 answer
  • If an object has a velocity of 8 m/s and
    10·1 answer
  • A solid is composed entirely of xenon atoms. What type of solid is it?
    10·1 answer
  • Please help me i need this asp
    11·1 answer
  • Answer Questions 7-11 based on Figure 2.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!