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ElenaW [278]
3 years ago
7

1. The elements on the Periodic Table are arranged in order of increasing

Chemistry
2 answers:
s344n2d4d5 [400]3 years ago
8 0

Answer:

Atomic number

Explanation:

eduard3 years ago
8 0

Answer:

Atomic number

Explanation:

In the modern periodic table, the elements are listed in order of increasing atomic number. The atomic number is the number of protons in the nucleus of an atom.

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5 0
3 years ago
Please help asap! Giving brainliest to correct answer!!
eduard
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3 years ago
The highly reactive elements in group 7A are known for forming salts. What are they called? transition metals metalloids halogen
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4 0
3 years ago
You have 4.5 x 10^24 particles of C3H8. How many grams are present?
Citrus2011 [14]

Answer:

33 g.

Explanation:

Hello there!

In this case, for these particle-mole-mass relationships problems, it is necessary for us to recall the following equivalence statement, based off the molar mass of the involved compound, C3H8, one mole of particles and the Avogadro's number:

1mol=44.11g=6.022x10^{23}molecules

In such a way, we can set up the following expression for the calculation of the mass in the given particles of propane:

4.5x10^{23}molecules*\frac{1mol}{6.022x10^{23}molecules} *\frac{44.11g}{1mol}\\\\33g

Best regards!

3 0
3 years ago
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