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
pshichka [43]
3 years ago
11

Which of the following is true about the elements on the Periodic Table? There may be 1 or more correct answers.

Chemistry
1 answer:
nlexa [21]3 years ago
4 0

Answer: 1. Block

2. True ( I'm unsure. He arranged it according to mass, but he is credited for the periodic table)

3. Noble gasses

4. technetium

5. Alkaline earth metals

6. Number of protons

7. False

8. Not true: generally decreases as atomic number increases within a period

9. Argon

10. Four

11. False

12. False

Explanation:

You might be interested in
According to the law of definite proportions, if a sample of a compound contains 24.00 grams of carbon and 4.00 grams of hydroge
Inga [223]

Answer: 8.00 grams

Explanation:

The ratio of carbon and hydrogen must be the same.

6 0
2 years ago
Which ones are right to this question?
Vitek1552 [10]

The average Kenectic energy

7 0
3 years ago
Major Battles of the
san4es73 [151]
Answer: Lexington and Concord

Explanation: The British were trying to find weapons and could not find them.
8 0
3 years ago
What is the volume of an oxygen tank if it contains 12 moles of oxygen at 273 K under 75 kPa?
Zina [86]
Given:
n = 12 moles of oxygen
T = 273 K, temperature
p = 75 kPa, pressure

Use the ideal gas law, given by
pV=nRT \\ or \\  V= \frac{nRT}{p}
where
V = volume
R = 8.3145 J/(mol-K), the gas constant

Therefore,
V= \frac{(12\,mol)(8.3145\, \frac{J}{mol-K} )(273\,K)}{75 \times 10^{3} \, Pa}= 0.3632\,m^{3}

Answer: 0.363 m³
    
5 0
3 years ago
What is the basic building block of matter to a chemist
Harman [31]
The basic building block of matter is the atom.
5 0
3 years ago
Other questions:
  • The ratio of atoms of potassium to ratio of atoms of oxygen is
    9·1 answer
  • A drought is best defined as
    7·1 answer
  • The number of electrons that can be held in the second orbit
    6·1 answer
  • What happens to energy when frequency
    8·1 answer
  • A hydrogen bond can occur between:
    10·1 answer
  • Probability can be used
    10·2 answers
  • How do we view large areas of earth’s surface?
    15·1 answer
  • HELPPPP ASAPP 10 POINTS
    15·1 answer
  • Were there any finches that could access more than one food source? If so, which ones?
    14·1 answer
  • Help please first person to get it right gets my old Netflix account​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!