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Physics 13 Online
OpenStudy (anonymous):

In the modern periodic table, elements are arranged according to increasing ____. (1 point) atomic number atomic mass date of discovery electrical conductivity

OpenStudy (anonymous):

i think it's mass

OpenStudy (anonymous):

elements are arranged according to to increasing ATOMIC NUMBER...

OpenStudy (anonymous):

Elements in Groups 3 through 12 of the periodic table are called _____. (1 point) transition elements representative elements halogens noble gases

OpenStudy (anonymous):

Use Figure 15-2 to answer the following question. Silicon - Periodic Table 5. Identify the atomic mass of silicon.

OpenStudy (anonymous):

they are called REPRESENTATIVE ELEMENTS.

OpenStudy (anonymous):

grp3-12 elements are called representative elements

OpenStudy (anonymous):

the bigger number is the atomic mass of silicon...

OpenStudy (anonymous):

28.0856

OpenStudy (anonymous):

yes...that is right!

OpenStudy (anonymous):

is that all??

OpenStudy (anonymous):

Elements in Groups 3 through 12 of the periodic table are called _____. (1 point) Unselected answer (1 pt) transition elements

OpenStudy (anonymous):

Every element has its own atomic number. The atomic number is the number of ____ in the nucleus of an atom of the element. (1 point) Unselected answer (0 pts) electrons Unselected answer (0 pts) neutrons Incorrect Answer (0 pts) positrons Unselected answer (1 pt) protons

OpenStudy (anonymous):

they are called REPRESENTATIVE ELEMENTS

OpenStudy (anonymous):

2 wrong

OpenStudy (anonymous):

thanks tho

OpenStudy (anonymous):

which one is wrong??

OpenStudy (anonymous):

Every element has its own atomic number. The atomic number is the number of ____ in the nucleus of an atom of the element. (1 point) Unselected answer (0 pts) electrons Unselected answer (0 pts) neutrons Incorrect Answer (0 pts) positrons Unselected answer (1 pt) protons

OpenStudy (anonymous):

Elements in Groups 3 through 12 of the periodic table are called _____. (1 point) Unselected answer (1 pt) transition elements Incorrect Answer (0 pts) representative elements Unselected answer (0 pts) halogens Unselected answer (0 pts) noble gases

OpenStudy (anonymous):

I already told you it is the number of PROTONS

OpenStudy (anonymous):

or is my answer wrong??

OpenStudy (anonymous):

really you did my bad

OpenStudy (anonymous):

thanks for helping me. thank you

OpenStudy (anonymous):

you are welcome!

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