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
ki77a [65]
3 years ago
13

Atomic radii DECREASES as you move across a period. Why?

Chemistry
1 answer:
Lelechka [254]3 years ago
8 0

Explanation:

As you move across a period, you gain more electrons and become more electronegative.  The electrons become very attracted to the protons in the nucleus.  This causes the electrons to become closer to the nucleus, decreasing atomic radii and increasing density.

You might be interested in
A square chunk of plastic has a length of 5 cm, width of 5 cm and height of 5 cm. It has a mass of 200 g. What is it’s density
vichka [17]

Answer:

1.6g/mL

Explanation:

Density equation is D=m/v

Density = g/mL

m=mass of sample in grams

v = volume of sample in mL

The volume of a square can be calculated by V=l*w*h.

In this case it is 5cm*5cm*5cm = 125cm^3

Since we know that 1cm^3 ~ 1mL we can convert the volume to mL as so:

125cm^3 (1mL/(1cm^3)) = 125mL

Then simply plug into the density equation:

D=200g/125mL = 1.6g/mL

3 0
3 years ago
What does the electron sea model for metals suggest?
fgiga [73]

Answer:

electron sea model for metals suggest that valence electrons drift freely around the metal cations.

Explanation:

Explanation: In electron sea model, the valence electrons in metals are delocalized instead of orbiting around the nucleus. ... These electrons are free to move within the metal atoms. Thus, we can conclude that the electron sea model for metals suggest that valence electrons drift freely around the metal cations.

8 0
3 years ago
Which statement describes an intensive property of matter? <br>​
Pachacha [2.7K]

Answer:

hope it helped you.

Explanation:

The properties of matter that do not depend on the size or quantity of matter in any way are referred to as an intensive property of matter. Temperatures, density, color, melting and boiling point, etc., all are intensive property as they will not change with a change in size or quantity of matter.

5 0
3 years ago
Read 2 more answers
PLZZZZZZZZ HELPPPPPP<br>​
hjlf

Answer:

482

Explanation:

5 0
3 years ago
Read 2 more answers
When you add salt to water it makes the solution boil
alukav5142 [94]

Answer:

A i believe

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • What did johann wolfgang döbereiner contribute to the periodic table?
    9·1 answer
  • 5. Which of the following is the best explanation why a reaction in a closed container can appear to stop before all the reactan
    15·1 answer
  • Describe the life of a damselfly
    10·2 answers
  • What are the conditions for an addition reaction?
    8·2 answers
  • Which of these is NOT a point of the Kinetic-Molecular theory?
    11·1 answer
  • Which of these elements has two valence electrons? A.hydrogen B.barium C.nitrogen D.krypton E.bromine
    8·1 answer
  • Define transparent ,translucent ,opaque materials?
    8·2 answers
  • On the calendar, the full moon is shown happening on the eleventh of the month. What moon would you see around the date shown wi
    9·1 answer
  • PLEASE HELP ME ASAP!!! THIS IS DUE UNTIL 1:30 PM!!! Tell how many Elements are in this compound and tell what the Elements are.
    13·2 answers
  • Question 2 of 10
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!