Question

The _____ carries no electrical charge in the atom.

Answer 1

my guess would be electrons

Answer 2

electron
here is a trick

NEUtron in neutral
PROton is positive
elcetron is the only thing left

Answer 3

electron*

Answer 4

thanks!

Answer 5

Most of the mass of an atom is contained in its _____.

Answer 6

nucleus?

Answer 7

Yes you are correct! Most of the mass of the atom is found in the nucleus. The nucleus contains the protons and neutron. The rest of the atom is electrons.(and electrons have less than 1/8000 the mass of a proton)

Answer 8

Electron

Answer 9

The number of protons in an atom determines the.

element?

Answer 10

Yes

Answer 11

The number of protons in the nucleus of an atom determines an element's atomic number. In other words, each element has a unique number that identifies how many protons are in one atom of that element.

Answer 12

Atoms are electrically_____ because they have the same number of protons and electrons.

neutral?

Answer 13

The principal elements found in living things are carbon, hydrogen, oxygen, and_____?

sodium?

Answer 14

Yes, the atoms are electrically neutral

Answer 15

thank! Am I right for my second question too?

Answer 16

Carbon, Hydrogen, Oxygen, Nitrogen, Sulfur, Phosphorous these are the ones

Answer 17

so no it's not sodium, it's sulfur

Answer 18

Sulfur

Answer 19

Do you get it now or need some more help.

Answer 20

the answer is nuetron - netral means no charge
electrons have a negative charge!

Answer 21

we already answered that one ^

Answer 22

incorrectly, i believe

Answer 23

these are my answers to pic through : potassium, water, nitrogen, or sodium.

Answer 24

Yes I get it and thanks for the help!

Answer 25

Which is not a compound?


H2
H2O
6CaO
5HCl

Answer 26

okay, then do potassium thats another one

Answer 27

k

Answer 28

H2

Answer 29

H2, its only got one element

Answer 30

do explain why please.

Answer 31

Four elements which comprise over 95% of the human body are:


carbon, phosphorus, oxygen, hydrogen
calcium, phosphorus, hydrogen, nitrogen
carbon, hydrogen, oxygen, nitrogen
calcium, hydrogen, oxygen, nitrogen

Answer 32

h2 is made out of two hydrogens atoms only. a compound must be made out of two different types of atom.

Answer 33

Thanks.

Answer 34

H2O is hydrogen and oxygen
6CaO is calcium and oxygen
5HCl is hydrogen and chlorine

Answer 35

hydrogen,oxygen, nitrogen, and carbon

Answer 36

Is this for a quiz or something.

Answer 37

yes, why?

Answer 38

The atomic mass of an element whose atoms consist of eight protons, nine neutrons, and eight electrons is:


8
16
17
25

Answer 39

25?

Answer 40

According to the text, how many elements have been identified?


20
92
112
118

this one is really confusing me is to how I would find the answer.

Answer 41

Nope the first one is B. 16

Answer 42

explain why.

Answer 43

Did you not read through the review or lesson or take notes at all.

Answer 44

electrons arent counted for mass, they're tiny

Answer 45

Lavoisier proposed that all matter is composed from the same _____.


atoms
elements
molecules
gases

Answer 46

I'm pretty sure this one is elements.

Answer 47

you'd find the asnwer to the number of elements by counting up the squares on your periodic table

Answer 48

or googling 'number of elements'

Answer 49

ohh. My lesson never had any of that stuff taught to me.

Answer 50

any more questions? ;)

Answer 51

one more: Many gases exist as____________ molecules of an element.

Answer 52

I'm thinking it's either natural or atomic

Answer 53

diatomic or that.

Answer 54

Okay, im pretty sure it's diatomic, let me double check

Answer 55

Okay. How are you double checking?

Answer 56

Yes, it's diatomic

Answer 57

I looked up diatomic molecules

Answer 58

hope I helped ;D