Test
Sin título
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Preguntas del test (22)
1The nucleus of an atom is [blank_start]positively[blank_end] charged because of the [blank_start]protons[blank_end]
- Apositively
- Bprotons
2The nucleus is made of p[blank_start]rotons[blank_end] and n[blank_start]eutrons[blank_end]
- Arotons
- Beutrons
3In the first shell of an atom there are [blank_start]two[blank_end] electrons, in the second there are [blank_start]eight[blank_end] and in the third there are [blank_start]eight[blank_end]. (write in letters)
- Atwo
- Beight
- Ceight
4Electrons are charged [blank_start]negatively[blank_end]
- Anegatively
5the 3 properties of metals are being m[blank_start]alleable[blank_end], s[blank_start]trong[blank_end] and have [blank_start]high[blank_end] m[blank_start]eltin[blank_end]g and b[blank_start]oiling[blank_end] points.
- Aalleable
- Btrong
- Chigh
- Deltin
- Eoiling
6Particle-------relative mass-----relative charge (numbers)
proton----------------[blank_start]1[blank_end]-----------------------[blank_start]1+[blank_end]
neutron--------------[blank_start]1[blank_end]------------------------[blank_start]0[blank_end]
electron--------[blank_start]very small[blank_end]-----------------[blank_start]1-[blank_end]- A1
- Bvery small
- C+1
- D0
- E-1
- F1+
- G0
- Hvery small
- I-1
- J0
- K1+
- L1
- M1-
- Nvery small
- O1-
- P0
- Q1
- R1+
- Svery small
- Tvery small
- U1-
- V1
- W1+
- X0
- Y1
- Zvery small
- AA1+
- AB0
- AC1-
7the atomic number = the number of p[blank_start]rotons[blank_end] and e[blank_start]lectrons[blank_end]
- Arotons
- Blectrons
8the mass number = the number of p[blank_start]rotons + neutrons[blank_end]
- Arotons + neutrons
9number of neutrons = [blank_start]mass[blank_end] number [blank_start]-[blank_end] [blank_start]atomic[blank_end] number
- Amass
- B-
- Catomic
10the number of electrons and protons is equal
- AVerdadero
- BFalso
11an isotope has the same number of [blank_start]protons[blank_end] but a different number of [blank_start]neutrons[blank_end]. They have the same atomic number but different [blank_start]mass[blank_end] number.
- Aprotons
- Bneutrons
- Cmass
12what are the different numbers?
- Amass number (protons + neutrons)
- Batomic number (electrons and protons)
13an ionic bond is between a m[blank_start]etal[blank_end] and a [blank_start]non metal[blank_end]
- Aetal
- Bnon metal
14In an ionic bond, the metal [blank_start]loses[blank_end] electrons to form [blank_start]positive[blank_end] ions and the non metal [blank_start]gains[blank_end] electrons to form [blank_start]negative[blank_end] ions.
- Aloses
- Bpositive
- Cgains
- Dnegative
15Ions are strongly bonded to each other because [blank_start]opposites attract[blank_end].
- Aopposites attract
- Bthey are connected
- Cthey are sharing
- Dthey have bonded
16[blank_start]Covalent bonding[blank_end] occurs when an atom shares electrons with another atom
- ACovalent bonding
17
A [blank_start]physical[blank_end] method of separation is one that doesn't involve a [blank_start]chemical[blank_end] reaction so no [blank_start]new[blank_end] substances form.- Aphysical
- Bchemical
- Cnew
18mixtures have...
- Aa chemical bond
- Bno chemical bond
19
```[blank_start]distance moved by compound[blank_end]
RF value = __________________________________```[blank_start]distance moved by solvent[blank_end]- Adistance moved by compound
- Bdistance moved by pen
- Cdistance moved by solvent
- Ddistance moved by water
20The problem with simple distillation is that if the [blank_start]boiling points[blank_end] are too close then the substances will [blank_start]mix[blank_end] again.
- Aboiling points
- Bmix
21Going down group one the properties are
- Aincreasing reactivity
- Bhigher melting and boiling points
- Clower melting and boiling points
- Dhigher relative atomic mass
- Ehigher mass number
22Group 1 elements create [blank_start]1+[blank_end] ions
- A1+
Información
- Descripción
- Chemistry Test sobre Sin título, creado por Anna Basing el 29/05/2017.
- Autor
- Anna Basing
- Idioma
- English
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- 0
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