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
Damm [24]
3 years ago
10

Which is true about each element in a period or horizontal row of the periodic table?

Chemistry
1 answer:
Ber [7]3 years ago
3 0

The  true  about element in  period or  horizontal  row  of periodic table is

Each  element  has one more outer electron than the element before it. (answer B)

<u><em>  Explanation</em></u>

 In periodic table  there are four horizontal rows(periods) that is  period 1,2,3 and 4.

Across the period each element has one more electron than element before it.

For example  Na and Mg which  are in  periodic 3.

Na  has 2.8.1  or [Ne] 3s¹ electron configuration  while Mg has  2.8.2  or [Ne] 3S² electron configuration.

Since Mg has 2   outer electrons  while Na has 1 outer electron, Mg has more electron than Na.

You might be interested in
I need help with this, Please help.
LUCKY_DIMON [66]

Answer:

b

Explanation:

5 0
3 years ago
Read 2 more answers
Write the formula for the polyatomic ion of ba3(po4)2: express your answer as an ion. express single charges as [+], not [1+]
Wewaii [24]
Ba₃(PO₄)₂ is a compound made of a metal cation and polyatomic ion. 
polyatomic ion is when 2 or more atoms are covalently bonded together and together have a charge and can act as one compound that can bond with another atom. 
In this case Ba²⁺ is the metal cation and PO₄³⁻ is the polyatomic ion. this is called the phosphate ion. one phosphate atom is bonded to 4 O atoms with an net charge of -3 and acts as a single unit.
8 0
4 years ago
How do you neutralize an acid?​
nasty-shy [4]

Answer:

by using a base

Explanation:

when you put base to acid, it will form a salt and base

8 0
3 years ago
Does the air in a room or water in a pot have to be at certain temperature to create convection? Yes or no? and explain why?​
MA_775_DIABLO [31]

Answer:

Yes. There must be a difference.

Explanation:

The part of water with low density (warm or hot) would rise, and the cold water would sink. This creates a convection.

5 0
3 years ago
Fill in the blanks to complete each statement about weathering
Allushta [10]

Answer:

Explanation:

Weathering is the breakdown of rocks into smaller particles called:

                  sediments

Weathering is the physical disintegration and chemical decay of rocks into smaller fragments to produce sediments. The product of rock weathering is basically sediments. Some of the sediments can be transformed to form soils when they combine with organic matter, water and air.

Physical weathering is when rocks are physically broken into smaller pieces, but the minerals in  the rock remain the same.

              Physical weathering

Physical weathering is the disintegration of rocks into smaller bits without altering the chemical make up of the minerals. The goal of physical weathering is to expose rock surface to action of chemical weathering.

When a rock is broken down in a way that changes the mineral composition, it is called  chemical weathering

           chemical weathering

Chemical weathering is the decay of rocks by altering the minerals in a rock.

4 0
4 years ago
Read 2 more answers
Other questions:
  • Considering the concept of surface area affecting the rate of reaction, explain why grain storage silos sometimes explode specta
    13·1 answer
  • When 500.0 g of water is decomposed by electrolysis and the yield of hydrogen is only 75.3%, how much hydrogen chloride can be m
    8·1 answer
  • a blank in the speed of the molecules allows the attractions between atoms and a little closer together
    9·1 answer
  • Which is a disadvantage of captive breeding
    15·2 answers
  • Blank is defined as the distance something travels divided by the time it takes
    5·1 answer
  • State the ideal gas law equations and tell what each term means
    12·2 answers
  • What can cause heat exhaustion?
    10·1 answer
  • What physical properties does lithium have
    13·1 answer
  • 100 PTS+BRAINILIEST: Why does it get colder as you go higher through the atmosphere, if you are getting closer to the sun??
    9·2 answers
  • b.write an equation for the reaction that occurs when a few drops of hydrochloric acid are added to the buffer. (nac2h3co2) of a
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!