When you push or pull on something, you are using a

Chemistry

2 answers:

bearhunter [10]3 years ago

6 0

The answer would be Force

nydimaria [60]3 years ago

3 0

Force is what you use to push or pull something

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avanturin [10]

Same size mass and composition

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4 years ago

Most nonmetals form covalent or ionic bonds, depending on the element with which they react. Carbon predominantly forms covalent

valentinak56 [21]

A)Calcium-This because calcium has two valence electrons hence it is a metal therefore it will form an ionic bond with carbon.

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3 years ago

What is the fraction of the hydrogen atom's mass (11h) that is in the nucleus? the mass of proton is 1.007276 u, and the mass of

ololo11 [35]

Hello there!

To determine the fraction of the hydrogen atom's mass that is in the nucleus, we have to keep in mind that a Hydrogen atom has 1 proton and 1 electron. Protons are in the nucleus while electrons are in electron shells surrounding the nucleus. The mass of the nucleus will be equal to the mass of 1 proton and we can express the fraction as follows:

$Mass Fraction= \frac{mass 1 Proton}{mass H atom} = \frac{1,007276 u}{1,007825}=0,9995$

So, the fraction of the hydrogen atom's mass that is in the nucleus is 0,9995. That means that almost all the mass of this atom is at the nucleus.

Have a nice day!

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3 years ago

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ahrayia [7]

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3 years ago

Imagine your homework assignment involves identifying an unknown pure substance. The valence electrons of the substance's atoms

makkiz [27]

The correct answer is (c) It would have lower ionization energies than K and a lower electronegativity value than K

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Atomic radius decreases --> ionization energy increase---->Electronegativity increases. We can use this flow chart to compare the IE and EN of the element. As K have lower radii than the unknown element, so the IE and EN of K will be greater than the unknown element.

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4 years ago

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