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
KiRa [710]
3 years ago
12

Position in the periodic table.

Chemistry
1 answer:
Nikolay [14]3 years ago
4 0

Answer:

1)A period in the periodic table is a horizontal row. All elements in a row have the same number of electron shells. ... Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases both as you move down a group or across a period.

2)D)Na has one fewer valence electron than Ca.

You might be interested in
Briefly compare and contrast the relative resistance to ph change of the seven solutions
JulsSmile [24]
PH  stands for "Potential Hydrogen" and the PH scale ranges from 0-14. PH refers to the ability to attract hydrogen ions.

The PH of a solution either indicates acidity of the solution or alkalinity of the solution. A solution which has PH 7 above is a base solution where a solution with PH less than 7 is an acidic solution.
6 0
3 years ago
A coyote and an oak tree both have DNA?
denis-greek [22]

Answer:

true, they both have different types of DNA.

7 0
3 years ago
Read 2 more answers
Which of the following describes the relationship correctly?
galben [10]
A. Air expands, becomes less dense and rises when the temperature is high due to the increased kinetic energy. This causes the air molecules to move around much more so they are further apart.
8 0
3 years ago
Read 2 more answers
The scientific Method
allochka39001 [22]
Observation : a piece of info we all gather through our 5 senses
Hypotheses: a testable explanation for an observation
Data: info that scientists gather during an experiment
Experiment: a procedure that is designed to test a hypothesis
Conclusion a judgment or decision
Scientific method a series of steps
4 0
3 years ago
Which statements accurately describe volume? Check all that apply.
lesantik [10]
Where is the chooses for you question
8 0
3 years ago
Other questions:
  • The following information is given for benzene at 1 atm:boiling point = 80.10 °CHvap(80.10 °C) = 393.3 J/gmelting point = 5.50 °
    11·1 answer
  • Which substance is most alkaline (basic): pH of 3, 10, or 12?
    9·2 answers
  • Water and methane have similar molar masses. methane changes from liquid to a gas. what could account for the difference
    6·1 answer
  • Mass of pennies is 26.0g and final volume is 54 mL. What is density of pennies?
    7·2 answers
  • When an atom is netural the number of the ? and ? are the same <br><br> 7TH GRADE SCIENCE
    15·2 answers
  • Because oxygen is more electronegative than hydrogen, the water molecule is
    11·1 answer
  • Que representa en la reacción química <br> Na2SO4(s)+H2O(1)=
    15·1 answer
  • What is the formula for Tetrachlorine pentaiodide
    7·1 answer
  • HNO3 + Mg(OH)2 yield Mg(NO3)2 + H2O​
    11·1 answer
  • Plsss answer my question that's on my profile pls​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!