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Preguntas del test (21)
1The atoms in an element are:
- AAll the same type
- BTwo types joined together
- CAbout a hundred different types
2
An atom consists of:- AAn electron surrounded by a nucleus
- BA nucleus containing electrons
- CA nucleus surrounded by electrons
3
What is the correct chemical symbol for sodium?- ANA
- BNa
- Cna
4
What are the groups in the periodic table?- AA row of similar elements
- B A column of similar elements
- CThe boxes in the table
5
How many protons, neutrons and electrons are there in a 27Al13 atom- A13 protons, 27 neutrons and 14 electrons
- B 13 protons, 14 neutrons and 13 electrons
- C13 protons, 27 neutrons and 13 electrons
6Which of the following statements is correct?
- AProtons are positively charged and electrons are negatively Charged
- BProtons are negatively charged and electrons are positively charged.
- CProtons are positively charged and neutrons are negatively charge
7Which of the following statements is true of an atom?
- AThe number of neutrons is always equal to the number of electrons
- BThe number of protons is always equal to the number of neutrons.
- CThe number of protons is always equal to the number of electrons.
8
Which electronic structure is correct for an element with 17 electrons?- A 2,8,7
- B1,7
- C10,7
9What is the proper name for group 1 elements?
- AAlkali metals
- BHallogens
- Cgroup1
10An element has the electronic structure 2,8,4. Which group is it in?
- A2
- B8
- C4
11Two elements have these electronic structures: 2,1 and 2,8,1. What can you say about the elements?
- AThey are both in Group 1.
- BThey are both in Group 2.
- CThey are both in period 2.
12What do the elements in a group have the same number of?
- Aelectrons
- Boccupied energy levels or shells
- Celectrons in the highest occupied energy level or outer shell
13What do the elements in a period have the same number of?
- Aelectrons
- Boccupied energy levels or shells
- Celectrons in the highest occupied energy level or outer shell
14What are metal hydroxides?
- AThe metal hydroxides are strong alkalis.
- Bwater
- Cvapour
15Why is sodium stored under oil?
- Ato make it nice and slippery
- Bto keep it away from air and water
- Cit burns with an orange flame
16When an element from group 1 reacts with water:
- AA metal hydroxide and carbon dioxide are formed
- BA metal hydroxide and oxygen are formed
- CA metal hydroxide and hydrogen are formed
17
Which of these electronic structures belongs to a noble gas?- A 2,8,2
- B2
- C2,2
18what do elements join together to form?
- Acompounds
- Bmixture
- Catom
19whatis an ion?
- AA charged particle
- BAtom
- Csomething used for clothes
20Metal atoms lose electrons to form positively charged ions?
- AVerdadero
- BFalso
21Non-metal atoms gain electrons to form negatively charged ions
- AVerdadero
- BFalso
Información
- Descripción
- GCSE MATHS,SCIENCE,ENGLISH Test sobre Sin título, creado por j.adjei el 28/09/2015.
- Autor
- j.adjei
- Idioma
- English
- Visitas
- 3
- Etiquetas
- Valoración
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