August 2018 1 16 Report
Zaad2,3,5,6/94 nowa era 1 gimnazjum :)
Zad 2 -Ustal liczby protonów i elektronów w atomach pierwiastków:
a) magnezu b).germanu c) ołowiu d)azotu e)tlenu f) węgla


Zad 3_ Narysuj uproszczone modele atomów pierwiastków :
-litu
-argonu
-wodoru
-tlenu
- azotu
-węgla

zad 5 : Podaj liczbę protonów ,elektronów , neutronów dla atomu wapnia 44Ca. Narysuj uproszczony model tego atomu.

More Questions From This User See All

GRAMMAR1 Use the words to make sentences about the world in 20 years’ time. Use the future continuous or the future perfect form of the verbs, and add articles and prepositions.1By 2030 / scientists / find / alternative / petrol cars____________________________________________________2 By 2030 / computers / take over / all routine jobs____________________________________________________3 By 2030 / we / stop flying / holidays / because / pollution____________________________________________________4 By 2030 / computers / organise / all machines and gadgets / our homes____________________________________________________5 By 2030 / many countries / already use / all their water resources ____________________________________________________6 By 2030 / we / all work/ from home ____________________________________________________7 By 2030 / everybody / learn / Chinese / school____________________________________________________8 By 2030 / the whole world / speak / English____________________________________________________9 By 2030 / most people / live / themselves ____________________________________________________10 By 2030 / we / get / all entertainment / through mobile phones _________________________________________________________ / 10 points2 Complete the sentences with the first or second conditional form of the verbs in brackets.1 If the human population __________ (grow) too big – which seems likely, many animals __________ (die out).2 I think it __________ (be) great if winters __________ (be) hot.3 We __________ (not have to) study if there __________ (be) no exams.4 If only I __________ (understood) more of what she talks about.5 If we __________ (not have) phones in the world, we __________ (have) much less contact with one another.6 Unless we __________ (drive) less, pollution levels __________ (not decrease).7 If you always __________ (use) your mobile phone, you __________ (get) a huge phone bill.8 We __________ (be) a lot healthier if we __________ (go) to the gym three times a week.9 I think that if they __________ (shut) all the supermarkets, lots of small shops __________ (open). Good, eh?10 I wish he __________ (ring) me more often._____ / 10 points
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