Medžiagų sudėtis

Question 1

FE

Answer 1

geležis- ferum

Question 2

AG

Answer 2

sidabras- argentum

Question 3

CU

Answer 3

varis- kuprum

Question 4

AU

Answer 4

auksas- aurum

Question 5

HG

Answer 5

gyvsidabris- hydrangyrum

Question 6

PB

Answer 6

svinas- pliumbum

Question 7

m1

Answer 7

w*m2

Question 8

m2

Answer 8

m1:w

Question 9

w

Answer 9

m1:m2

Question 10

Protonas

Answer 10

simbolis P+, kruvis +1, mase 1, spalva raudona

Question 11

Neutronas

Answer 11

simbolis n0, kruvis 1, mase 0, spalva raudona

Question 12

Elektronai

Answer 12

simbolis e-, kruvis n.d, mase -1, spalva melyna

Question 13

Metalai atidave isorinio sluoksnio elektronus…

Answer 13

tampa teigiamaisiais jonais. Ju kruvis priklauso nuo isorinio sluoksnio e-

Question 14

Ne metalai prisijunge elektronus tampa…

Answer 14

neigiamaisiais jonais

Question 15

Inertines dujos…

Answer 15

neutralio dujos

Question 16

Anglies izotopas

Answer 16

archeologijoje nustatomos iskasenu amzius

Question 17

7 pagr cheminiai elementai

Answer 17

polonis, radis, aktinis, toris, protaktinis, uranas, radonis

Question 18

Izotopas-

Answer 18

to paties cheminio elemento atomas, turintis po lygiai protonu, bet skiriasi neutronu skaicius

Question 19

Branduoli sudaro

Answer 19

protonai ir neutronai

Question 20

Atomo centre yra

Answer 20

branduolys

Question 21

Protonai ir neutronai turi

Answer 21

vienoda mase

Question 22

Protono kruvis

Answer 22

+1

Question 23

Neutrono kruvis

Answer 23

0

Question 24

Aplink branduoli skrieja

Answer 24

elektronai

Question 25

Elektrono kruvis

Answer 25

-1

Question 26

Kiekviename atome yra vienodas

Answer 26

protonu ir elektronu skaicius

Question 27

Atomas virsta kruvi turincia dalele, jonu

Answer 27

atidaves ar prijunges viena ar daugiau elektronu

Question 28

Teigiamasis jonas

Answer 28

netekes vieno ar daugiau elektronu igauna teigiamaji kruvi

Question 29

Neigiamasis jonas

Answer 29

prijunges viena ar daugiau elektronu atomas igyja neigiamaji kruvi

Question 30

sudaryti is tu paciu elementu

Answer 30

zemes pluta, gyvieji organizmai, visata

Question 31

gamtoje randami

Answer 31

94

Question 32

dirbtiniu budu

Answer 32

24

Question 33

Protis

Answer 33

raudonas 1,1 H

Question 34

Deuteris

Answer 34

raudonas, juodas 2,1 H

Question 35

Tritis

Answer 35

Raudonas, juodi 3,1 H

Question 36

Radioaktyvus

Answer 36

elementai savaime spinduliuojantys energija

Question 37

radioaktyvumas

Answer 37

savaiminis atomu branduoliu skilimas