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spin [16.1K]
2 years ago
12

Do you know the answer if so pls answer

Chemistry
1 answer:
igomit [66]2 years ago
6 0

Answer:

They are both pretty soft for metals, but magnesium is significantly harder than calcium using this scale . Mg = 2.5, Ca = 1.75. The larger the number, the harder

Explanation:

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This for number 8 and 9
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How many grams of silver chromate, Ag2CrO4, are produced from 57.7
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5 0
2 years ago
Which of the following is the quantum number set for an electron in the 3rd energy level, dumb-bell shaped orbital, on the z-axi
Juli2301 [7.4K]

Answer:

Explanation:

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Azimuthal quantum no "l"= 1

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5 0
2 years ago
The atomic mass is the sum of the number of ________ and ________ in the nucleus of an atom. Choose two answers from the options
iVinArrow [24]

Answer :

The atomic mass is the sum of the number of protons and neutrons in the nucleus of an atom.

Explanation :

Atomic number : it is defined as the number of protons or number of electrons.

Atomic number = number of protons = number of electrons

Mass number or atomic mass : It is defined as the sum of the number of protons and the number of neutrons.

Mass number or atomic mass = Number of protons + Number of neutrons

For example :

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Thus, the atomic mass is the sum of the number of protons and neutrons in the nucleus of an atom.

3 0
3 years ago
Read 2 more answers
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