Muaj pes tsawg electrons nyob rau hauv nruab nrab lithium atom?
Muaj pes tsawg electrons nyob rau hauv nruab nrab lithium atom?

Video: Muaj pes tsawg electrons nyob rau hauv nruab nrab lithium atom?

Video: Muaj pes tsawg electrons nyob rau hauv nruab nrab lithium atom?
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Anonim

Ib qho nruab nrab lithium atom yuav muaj 3electron ua . Qhov tsis zoo electrons sib npaug rau tus nqi ntawm cov protons zoo hauv lub nucleus. Txawm hais tias nws yog tus naj npawb ntawm protons uas txiav txim siab lub caij, tus naj npawb ntawm cov electrons yeej ib txwm zoo ib yam li tus lej atomic hauv neutralato.

Tsis tas li ntawd, muaj pes tsawg tus electrons nyob hauv ib qho atom nruab nrab?

Yog ib nruab nrab atom muaj 2 protons, nws yuav tsum muaj 2 electrons . Yog ib nruab nrab atom Nws muaj 10 protons, nws yuav tsum muaj 10 electrons . Koj tau txais lub tswv yim. Yuav kom ua nruab nrab , ib atom yuav tsum muaj tib tus naj npawb ntawm electrons thiab protons.

Ib sab saum toj, pes tsawg electrons muaj nyob rau hauv lithium? 2, 1

Kuj paub, muaj pes tsawg valence electrons nyob rau hauv nruab nrab lithium atom?

1 valence electron

Puas yog lithium muaj 3 lossis 4 neutrons?

Lithium ib txwm muaj 3 protons: nws tus lej atomic yog 3 , thiab qhov no yog txiav txim los ntawm nws tus nqi ntawm protons (los yog los ntawm nws cov nucleus tus nqi yog tias koj xav tau tau ntau tshaj). Yog li ntawd, a lithium atom nrog nruab nrab chargewill muaj 3 electrons ib yam. 92.5% ntawm ib txwm tshwm sim lithium atoms yog Li7, uas muaj 4 neutron.

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