Question

#1: What is the charge on an electrically neutral atom of hydrogen?

A. 1

B. 0

C. +1

D. +2
**My answer: B. 0

Answer 1

yes zerooo

Answer 2

#2: An atom has 16 protons and 16 neutrons. Which of the following could be the symbol for that atom, including its mass number? Consult the periodic table.

A. 32S

B. 32Cl

C. 35Cl

D. 35S
***my answer: C. 35Cl
(not too sure tho,... and btw, the numbers are exponents!)

Answer 3

#3: Which of the following represents an ion?

A. Ca

B. 4He

C. Mg

D. Na+
**My answer: D. Na+
is that right??? :D

Answer 4

nope, remember 16 protons = atomic number 16

Answer 5

so my answer to #2 is B. 32Cl??

Answer 6

#3 is right!

Answer 7

nope, look at the periodic table, which element is number 16?

Answer 8

#4: Isotopes of an element have different numbers of which of the following?

A. neutrons

B. protons

C. electrons

D. atoms
***My answer: A. neutrons

Answer 9

#4 is right

Answer 10

idk about #2 :(
and lemme post #5 really quick :)

Answer 11

#5: Given that oxygen has an atomic number of 8, determine how many protons and neutrons are in the isotope 18O, or oxygen-18.

A. 8 protons and 9 neutrons

B. 8 protons and 8 neutrons

C. 8 protons and 7 neutrons

D. 8 protons and 10 neutrons
***idk this one at all :(

Answer 12

lol with number 2 you have to look at the periodic table, look for number 16. theres nothing to it :)

Answer 13

18Oxygen means that the atomic mass = 18

so the number of protons (which is fixed at 8) + number of neutrons MUST equal 18.

Answer 14

oh okay so #2=A. 32S
???

Answer 15

and #5 = D. 8 protons and 10 neutrons
???

Answer 16

yes!

Answer 17

to both!

Answer 18

aweomse!! so this is it??
1=B
2=A
3=D
4=A
5=D
???

Answer 19

yep!

Answer 20

great! thank youuuu

Answer 21

great! thank youuuu

Answer 22

(: